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### Course: Pre-algebra > Unit 7

Lesson 5: Finding mistakes in one-step equations# Finding mistakes in one-step equations

Gain a deeper understanding of solving one-step equations by studying a correct and an incorrect example.

Solving one-step equations is all about using inverse operations on both sides of an equation to get the variable by itself. Answer the questions below to deepen your understanding of how to solve one-step equations.

## Cam solved this problem ${\text{correctly}}$ :

**Solve for**$x$ :

## Brooke solved this problem ${\text{incorrectly}}$ :

**Solve for**$n$ :

## Solve a problem on your own

## Want to join the conversation?

- Why do we make mistakes?(42 votes)
- Because humans arent the brightest(102 votes)

- how would you know the mistake(33 votes)
- idk i got it wrong(16 votes)

- how do you know your mistakes(15 votes)
- If the value of x in the answer does not make the original equation true, then there’s a mistake somewhere.

This means that checking whether or not your value of x makes the original equation true greatly reduces the frequency of mistakes on homework and tests.(25 votes)

- how would you know about your mistake(12 votes)
- You can find out if you made a mistake if your answer doesn't not make the original equation true.(8 votes)

- how did you know the answer(10 votes)
- Why would u multiply(7 votes)
- This page has multiple problems - which one are you asking about? Please clarify your question if you need help.(7 votes)

- Later in algebra, you will encounter two-step equations and then equations with more than two steps, including equations with parentheses and/or the variable on both sides. A strong understanding of one-step equations will help you solve multi-step equations later on.(10 votes)
- K i understand this but some you have to work out on paper and i dont have paper to use :\ so how am i suppose to work it out without paper?(6 votes)
- on the bottom left cornerish of your page wile doing the test thing theirs a little pen that you press on and you can draw it out.(4 votes)

- I am your question.(7 votes)
- oh I don’t even know why am here I’m 18 I don’t know why I’m doing seventh grade math(5 votes)
- I'm ten and I don't know why I'm here either.(2 votes)