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8=-2v+4(v+5)
We move all terms to the left:
8-(-2v+4(v+5))=0
We calculate terms in parentheses: -(-2v+4(v+5)), so:We get rid of parentheses
-2v+4(v+5)
We multiply parentheses
-2v+4v+20
We add all the numbers together, and all the variables
2v+20
Back to the equation:
-(2v+20)
-2v-20+8=0
We add all the numbers together, and all the variables
-2v-12=0
We move all terms containing v to the left, all other terms to the right
-2v=12
v=12/-2
v=-6
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