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-126=9(5+v)
We move all terms to the left:
-126-(9(5+v))=0
We add all the numbers together, and all the variables
-(9(v+5))-126=0
We calculate terms in parentheses: -(9(v+5)), so:We get rid of parentheses
9(v+5)
We multiply parentheses
9v+45
Back to the equation:
-(9v+45)
-9v-45-126=0
We add all the numbers together, and all the variables
-9v-171=0
We move all terms containing v to the left, all other terms to the right
-9v=171
v=171/-9
v=-19
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