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-13-3v=-3(v+7)
We move all terms to the left:
-13-3v-(-3(v+7))=0
We calculate terms in parentheses: -(-3(v+7)), so:We get rid of parentheses
-3(v+7)
We multiply parentheses
-3v-21
Back to the equation:
-(-3v-21)
-3v+3v+21-13=0
We add all the numbers together, and all the variables
8!=0
There is no solution for this equation
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