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-64.4=8.4-4v
We move all terms to the left:
-64.4-(8.4-4v)=0
We add all the numbers together, and all the variables
-(-4v+8.4)-64.4=0
We get rid of parentheses
4v-8.4-64.4=0
We add all the numbers together, and all the variables
4v-72.8=0
We move all terms containing v to the left, all other terms to the right
4v=72.8
v=72.8/4
v=18+0.8/4
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