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.
Video : Only 1% of people pass this logic test
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!
Ex-Model On Addiction And Homeless Life: ‘I’m In A Lot Of Pain’
Fitness model who got homeless after becoming an addict Loni Willison is blaming her ex-husband, “Baywatch” actor Jeremy Jackson, for her mental health deterioration.
In an interview that X17 Online published on Friday, the 39-year-old Willison—who has been spotted looking through dumpsters in California throughout the years—was asked where her life went wrong.
“My former spouse. Getting hitched. I got divorced, at least,” she answered.”He arranged for this to happen to me.”
After less than two years of marriage, the couple suffered a painful breakup in 2014.
During an apparent drunken altercation, Jackson allegedly attempted to choke Willison. The Post reached out to Jackson for an answer.
Willison formerly modeled for magazines like Flavour, Iron Man, and Glam Fit. She disappeared from the public view for over four years, until 2018.
Instead of her beautifully bronzed physique and gorgeous blonde hair, Willison had become disheveled, had short hair, and had lost her top teeth when she resurfaced.
During the interview on Friday, Willison said that her stomach hurts “really bad” and that she is “in a lot of pain.”
She said that she “can’t live inside anywhere” and that she is no longer allowed to be near power because she was “electrocuted” every day for about a year.
I believe that in addition to sensing electricity, I also detect other substances such as wire, various metals, fuses, batteries, and specific compounds. Therefore, I believe that my body even filters that kind of stuff,” she said.
I wouldn’t know for sure; I’d need to use a sonogram machine or a large X-ray machine to find out. It’s fairly intense.
When asked whether she had asked the city of Los Angeles for help, Willison replied, “There’s nothing that anybody can offer me.” There is nothing we can do to help.
She claimed to have received offers of help but never made a request for it.
She acknowledged that she’s “not necessarily” satisfied with her life’s course, saying, “There are good parts and there are bad parts, but whatever.”
The interviewer also noticed that she had serious injuries on her fingers. When he suggested that she have them checked out, Willison comforted him, saying, “I’ll be fine.”
In a 2018 interview, Willison discussed her energy issues with the Daily Mail. She said at the time that she was “getting tortured in my home, my apartment” due to her crystal meth addiction.
The 42-year-old Jackson has been open about his own battles with alcohol, drug, and steroid addiction.
In order to serve time in prison for allegedly stabbing a woman in Los Angeles in 2015, Jackson accepted into a plea deal in 2017.
He was also kicked off “Celebrity Big Brother” in 2015 after it was alleged that he had stolen model Chloe Goodman’s robe.
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