-21=3(v+5)+3v

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Solution for -21=3(v+5)+3v equation:



-21=3(v+5)+3v
We move all terms to the left:
-21-(3(v+5)+3v)=0
We calculate terms in parentheses: -(3(v+5)+3v), so:
3(v+5)+3v
We add all the numbers together, and all the variables
3v+3(v+5)
We multiply parentheses
3v+3v+15
We add all the numbers together, and all the variables
6v+15
Back to the equation:
-(6v+15)
We get rid of parentheses
-6v-15-21=0
We add all the numbers together, and all the variables
-6v-36=0
We move all terms containing v to the left, all other terms to the right
-6v=36
v=36/-6
v=-6

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