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21/4+v=-7
We move all terms to the left:
21/4+v-(-7)=0
We add all the numbers together, and all the variables
v+7+21/4=0
We multiply all the terms by the denominator
v*4+21+7*4=0
We add all the numbers together, and all the variables
v*4+49=0
Wy multiply elements
4v+49=0
We move all terms containing v to the left, all other terms to the right
4v=-49
v=-49/4
v=-12+1/4
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