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-28=5v+2(v-7)
We move all terms to the left:
-28-(5v+2(v-7))=0
We calculate terms in parentheses: -(5v+2(v-7)), so:We get rid of parentheses
5v+2(v-7)
We multiply parentheses
5v+2v-14
We add all the numbers together, and all the variables
7v-14
Back to the equation:
-(7v-14)
-7v+14-28=0
We add all the numbers together, and all the variables
-7v-14=0
We move all terms containing v to the left, all other terms to the right
-7v=14
v=14/-7
v=-2
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