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