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## 7th grade

### Course: 7th grade > Unit 5

Lesson 5: Two-step equations with decimals and fractions# Two-step equations review

A two-step equation is an algebraic equation that takes you two steps to solve. You've solved the equation when you get the variable by itself, with no numbers in front of it, on one side of the equal sign.

## What are two-step equations?

A

**two-step equation**is an algebraic equation you can solve in two steps. Once you've solved it, you've found the value of the variable that makes the equation true.### Example 1

We're given an equation and asked to solve for x:

We need to manipulate the equation to get x by itself.

The solution:

It's always a good idea to check our solution in the original equation to make sure we didn't make any mistakes:

*Want to learn more about two-step equations? Check out this video.*

### Example 2

We're asked to solve this equation for a:

We need to manipulate the equation to get a by itself.

The solution:

Let's check our work (better safe than sorry!):

*Want to see another example like this? Check out this video.*

## Want to join the conversation?

- how can you solve problem like 2=(c-5+6) i do not know how to solve problems like this i need hints(43 votes)
- The answer is c = 1. You would first combine all the like terms in the parenthesis. The only like terms are -5 and 6. The sum of those numbers gets you 1, then by subtracting 1 from both sides you are left with c = 1. You can even check it by putting 1 in c's place: 2=(1-5+6).(41 votes)

- How would I solve 3^(x+3) = 9 ?(9 votes)
- you would multiply 3 by both x and 3....=3x+9=9

u would then minus 9 from both sides then u would get 3x=0 then u would divide both sides by and ans will be 0(20 votes)

- how do u solve 24= 3(n-5)(14 votes)
- You multiply 3 by n and then 3 by -5 and then the equation is 24=3n-15(6 votes)

- how can i solve more problems like this?(10 votes)
- how do people known the answer but not me i need hlep(12 votes)
- When you answer the question correct, or you press explain, then you can see how to do that question. If this doesn't work, then refresh your page.(1 vote)

- how do i solve -5m/2 = 35(6 votes)
- How do you solve 8 + x/4 = -2?(7 votes)
- First you subtract 8 from both sides and get x/4 = -10 then multiply both sides by 4 and you get x = -40(7 votes)

- why do some people have so many votes i wish i had some(9 votes)
- Because they have Ether been here for a long time or people thought it was helpful and/or interesting(2 votes)

- how do you solve for the variable?(6 votes)
- just calculate the other things that you know(everything except variables).I kind of got confused too.(> <)(4 votes)

- how can you solve a problem? like 24= 3(n-5) it hard(7 votes)