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105=7(1+2v)
We move all terms to the left:
105-(7(1+2v))=0
We add all the numbers together, and all the variables
-(7(2v+1))+105=0
We calculate terms in parentheses: -(7(2v+1)), so:We get rid of parentheses
7(2v+1)
We multiply parentheses
14v+7
Back to the equation:
-(14v+7)
-14v-7+105=0
We add all the numbers together, and all the variables
-14v+98=0
We move all terms containing v to the left, all other terms to the right
-14v=-98
v=-98/-14
v=+7
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