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86=5(4+7v)-4
We move all terms to the left:
86-(5(4+7v)-4)=0
We add all the numbers together, and all the variables
-(5(7v+4)-4)+86=0
We calculate terms in parentheses: -(5(7v+4)-4), so:We get rid of parentheses
5(7v+4)-4
We multiply parentheses
35v+20-4
We add all the numbers together, and all the variables
35v+16
Back to the equation:
-(35v+16)
-35v-16+86=0
We add all the numbers together, and all the variables
-35v+70=0
We move all terms containing v to the left, all other terms to the right
-35v=-70
v=-70/-35
v=+2
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