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-3+v/8=-4
We move all terms to the left:
-3+v/8-(-4)=0
We add all the numbers together, and all the variables
v/8+1=0
We multiply all the terms by the denominator
v+1*8=0
We add all the numbers together, and all the variables
v+8=0
We move all terms containing v to the left, all other terms to the right
v=-8
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