How do you solve -5n + 7- n = 12- n?

2 Answers
Sep 18, 2017

Collect numbers on one side and letters on the other. n=-1

Explanation:

-5n-n+n = 12-7

When you put all letters on the left hand side and numbers on the right hand side.

-5n = 5

n=5/-5

n=-1

This is your solution.

Sep 18, 2017

n=-1

Explanation:

-5n+7-n=12-n

Add n to both sides:

-5n+7-n+n=12-n+n

-5n+7=12

Subtract 7 from both sides:

-5n+7-7=12-7

-5n=5

Multiply both sides by -1

-5ntimes-1=5times-1

5n=-5

Divide both sides by 5:

(5n)/5=(-5)/5

n=-1