7s-12-15s=-13s+18

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Solution for 7s-12-15s=-13s+18 equation: 



7s-12-15s=-13s+18

We move all terms to the left:

7s-12-15s-(-13s+18)=0

We add all the numbers together, and all the variables

-8s-(-13s+18)-12=0

We get rid of parentheses

-8s+13s-18-12=0

We add all the numbers together, and all the variables

5s-30=0

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

5s=30

s=30/5

s=6

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