7r=-8+3r

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Solution for 7r=-8+3r equation: 



7r=-8+3r

We move all terms to the left:

7r-(-8+3r)=0

We add all the numbers together, and all the variables

7r-(3r-8)=0

We get rid of parentheses

7r-3r+8=0

We add all the numbers together, and all the variables

4r+8=0

We move all terms containing r to the left, all other terms to the right

4r=-8

r=-8/4

r=-2

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