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15(5.5+v)=25(5.5-v)
We move all terms to the left:
15(5.5+v)-(25(5.5-v))=0
We add all the numbers together, and all the variables
15(v+5.5)-(25(-1v+5.5))=0
We multiply parentheses
15v-(25(-1v+5.5))+82.5=0
We calculate terms in parentheses: -(25(-1v+5.5)), so:We get rid of parentheses
25(-1v+5.5)
We multiply parentheses
-25v+137.5
Back to the equation:
-(-25v+137.5)
15v+25v-137.5+82.5=0
We add all the numbers together, and all the variables
40v-55=0
We move all terms containing v to the left, all other terms to the right
40v=55
v=55/40
v=1+3/8
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