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19=-7v+5(v+3)
We move all terms to the left:
19-(-7v+5(v+3))=0
We calculate terms in parentheses: -(-7v+5(v+3)), so:We get rid of parentheses
-7v+5(v+3)
We multiply parentheses
-7v+5v+15
We add all the numbers together, and all the variables
-2v+15
Back to the equation:
-(-2v+15)
2v-15+19=0
We add all the numbers together, and all the variables
2v+4=0
We move all terms containing v to the left, all other terms to the right
2v=-4
v=-4/2
v=-2
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