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-5v-7=8(v-9)
We move all terms to the left:
-5v-7-(8(v-9))=0
We calculate terms in parentheses: -(8(v-9)), so:We get rid of parentheses
8(v-9)
We multiply parentheses
8v-72
Back to the equation:
-(8v-72)
-5v-8v+72-7=0
We add all the numbers together, and all the variables
-13v+65=0
We move all terms containing v to the left, all other terms to the right
-13v=-65
v=-65/-13
v=+5
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