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-7v+1=-4(v+2)
We move all terms to the left:
-7v+1-(-4(v+2))=0
We calculate terms in parentheses: -(-4(v+2)), so:We get rid of parentheses
-4(v+2)
We multiply parentheses
-4v-8
Back to the equation:
-(-4v-8)
-7v+4v+8+1=0
We add all the numbers together, and all the variables
-3v+9=0
We move all terms containing v to the left, all other terms to the right
-3v=-9
v=-9/-3
v=+3
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