3s-(-3)=-9

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Solution for 3s-(-3)=-9 equation: 



3s-(-3)=-9

We move all terms to the left:

3s-(-3)-(-9)=0

We add all the numbers together, and all the variables

3s+12=0

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

3s=-12

s=-12/3

s=-4

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