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-2(v+2)=5v+45
We move all terms to the left:
-2(v+2)-(5v+45)=0
We multiply parentheses
-2v-(5v+45)-4=0
We get rid of parentheses
-2v-5v-45-4=0
We add all the numbers together, and all the variables
-7v-49=0
We move all terms containing v to the left, all other terms to the right
-7v=49
v=49/-7
v=-7
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