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3.5(2v-5.4)=2.5(3v-12)
We move all terms to the left:
3.5(2v-5.4)-(2.5(3v-12))=0
We multiply parentheses
7v-(2.5(3v-12))-18.9=0
We calculate terms in parentheses: -(2.5(3v-12)), so:We get rid of parentheses
2.5(3v-12)
We multiply parentheses
7.5v-30
Back to the equation:
-(7.5v-30)
7v-7.5v+30-18.9=0
We add all the numbers together, and all the variables
-0.5v+11.1=0
We move all terms containing v to the left, all other terms to the right
-0.5v=-11.1
v=-11.1/-0.5
v=22+0.1/0.5
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