Have you ever come across a math problem that seems easy at first glance, only to realize that most people get it wrong? The equation 9 – 9 ÷ 9 + 9 – 9 ÷ 9 = ? is one such puzzle that confuses many. It looks simple, but if you’re not careful, you might end up with the wrong answer.
Are you ready to put your math skills to the test? Take a moment to solve it before reading ahead. Think you got it right? Let’s find out!
Why Do So Many People Get This Wrong?
At first glance, this equation appears straightforward. However, small details in mathematical rules trip people up. Here are some common mistakes that lead to the wrong answer:
- Ignoring the Order of Operations (PEMDAS/BODMAS) – Many people solve the problem from left to right without following the correct order of operations.
- Misplacing Parentheses (Even When They Aren’t Written) – Some assume parentheses where there are none, changing how they approach division and subtraction.
- Rushing Through the Calculation – The problem is designed to look easy, so people tend to solve it quickly and overlook critical steps.
So, what’s the correct approach? Let’s break it down step by step.
Step-by-Step Solution
To solve this equation correctly, we must follow the order of operations. The most commonly used rule is PEMDAS (Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right)).
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The given equation:
9 – 9 ÷ 9 + 9 – 9 ÷ 9
Step 1: Solve the Division First
According to PEMDAS, division comes before subtraction and addition. So, let’s divide first:
- 9÷9=19 ÷ 9 = 19÷9=1
- 9÷9=19 ÷ 9 = 19÷9=1
Now, substitute these values back into the equation:
9 – 1 + 9 – 1
Step 2: Perform Addition and Subtraction from Left to Right
Now, we calculate in order from left to right:
- 9 – 1 = 8
- 8 + 9 = 17
- 17 – 1 = 16
So, the correct answer is: 16
Common Incorrect Answers and Why They Happen
Many people arrive at incorrect answers because they don’t follow the correct order of operations. Here are some of the most common mistakes:
- Answer: 0 – This happens when someone groups all the numbers together without following PEMDAS, incorrectly simplifying the problem as:
9−9−9+9−9=09 – 9 – 9 + 9 – 9 = 09−9−9+9−9=0 - Answer: 1 – Some mistakenly subtract 9 from itself first before dividing, leading to:
(9−9)÷9+9−9÷9=1(9 – 9) ÷ 9 + 9 – 9 ÷ 9 = 1(9−9)÷9+9−9÷9=1
These errors reinforce the importance of following the correct mathematical rules step by step.
Why Understanding Order of Operations Matters
You might wonder—why does it even matter? Well, mathematics is built on logical rules, and following them correctly ensures we get consistent, accurate answers. The order of operations is used in everything from programming to engineering to everyday calculations.
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Think about it this way: If a recipe tells you to bake a cake at 350°F for 30 minutes before adding frosting, you wouldn’t reverse the steps, right? Math works the same way—sequence matters!
Put Your Skills to the Test
Did you get the correct answer? Share your response in the comments! Were you surprised by how easy it was to make a mistake?
If you enjoy solving puzzles like this, challenge your friends and see if they can get it right! Math riddles help improve problem-solving skills and boost logical thinking.
Want more brain teasers like this? Keep testing yourself with tricky puzzles and improve your critical thinking skills! Who knows? The next time you see a math problem like this, you might be among the 10% who get it right on the first try!
A Man Born With No Jaw Finds Love, but Their Relationship Sparks Heated Controversy: “She Can’t Kiss Him!”
In a profoundly inspiring story of love and determination, Joseph Williams defied seemingly insurmountable odds to find not just love, but an enduring and unbreakable connection with Vania. Their journey, marked by initial uncertainties and obstacles, ultimately led to a heartwarming union in 2020.
Williams encountered many challenges and faced repeated rejections.
Born with otofacial syndrome, Williams endured a lifetime of bullying and isolation until he found the love of his life. Despite ongoing criticism, the couple is now happily married and has emerged from these challenges even stronger. Unable to speak or chew due to his disability, Williams communicates through sign language and relies on a feeding tube.
The love he experiences with his wife has reignited his self-esteem following years of feeling worthless. This has motivated him to advocate for embracing life despite differences. He expressed fervently, “I understand that I am different and that some people will think I am ugly and not accept me, but I am still a person who has a heart, feelings, and a brain. I should be treated with respect, just as anyone else should be.”
During difficult times, love persists.
Joseph prefers to receive questions rather than stares regarding his condition. He emphasizes the importance of independence, as he experienced excessive protectiveness during his youth. His adoption stemmed from his birth mother’s surprise at his condition, yet he remains steadfast in not letting it define or limit him.
Despite enduring difficult treatments such as bone and skin grafts along with jaw reconstruction, Joseph faced self-esteem challenges in his youth, fearing a life of isolation. However, in 2019, he met Vania, who would become his wife. Their relationship started as friends and evolved into a deep and meaningful love story.
Curiosity blossomed into a deep love that bound them together.
When Vania first encountered Williams at her workplace, she was intrigued but uncertain about how to approach his condition. Eventually, she learned about it through someone else. Williams had faced various reactions to his condition, from curious stares to people avoiding him out of discomfort.
Despite these challenges, Joseph and Vania forged a deep bond. Their friendship gradually evolved into a romantic relationship, though Vania initially struggled with feelings of embarrassment. Over time, she fully embraced him for who he was. They communicate using a text-to-speech app and sign language. When Vania’s mother, Janice, first met Williams, she was initially surprised but curious about his condition.
Despite initial uncertainties, their love triumphed.
Vania’s mother expressed her admiration, saying, “He’s a remarkable man. He does things that, you know, normal men don’t do. He’s a hard worker, for one, he’s attentive to Vania. He cares about her, he loves her, and she loves him.”
Despite initial doubts, Williams and Vania got married in 2020, supported by her parents and his loved ones.
Their relationship has sparked various opinions from people, with many making assumptions about them. Some have commented, “She can’t kiss him,” or “She must be cheating on him.” However, their unwavering determination and deep love for each other have never stopped them from pursuing their dreams, proving that love conquers all and prevails above all else.
Their story is a testament to the immense power of love to overcome obstacles and defy societal expectations. Through highs and lows, doubts and triumphs, they have forged a remarkable bond that will endure a lifetime.
Countless other stories similarly demonstrate that love is an unstoppable force capable of conquering any adversity.
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