-s+8=-7-4s

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Solution for -s+8=-7-4s equation: 



-s+8=-7-4s

We move all terms to the left:

-s+8-(-7-4s)=0

We add all the numbers together, and all the variables

-s-(-4s-7)+8=0

We add all the numbers together, and all the variables

-1s-(-4s-7)+8=0

We get rid of parentheses

-1s+4s+7+8=0

We add all the numbers together, and all the variables

3s+15=0

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

3s=-15

s=-15/3

s=-5

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