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21-5=3v+5
We move all terms to the left:
21-5-(3v+5)=0
We add all the numbers together, and all the variables
-(3v+5)+16=0
We get rid of parentheses
-3v-5+16=0
We add all the numbers together, and all the variables
-3v+11=0
We move all terms containing v to the left, all other terms to the right
-3v=-11
v=-11/-3
v=3+2/3
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