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3+v/5=-12
We move all terms to the left:
3+v/5-(-12)=0
We add all the numbers together, and all the variables
v/5+15=0
We multiply all the terms by the denominator
v+15*5=0
We add all the numbers together, and all the variables
v+75=0
We move all terms containing v to the left, all other terms to the right
v=-75
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