31=3(v+5)-7v

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Solution for 31=3(v+5)-7v equation: 



31=3(v+5)-7v

We move all terms to the left:

31-(3(v+5)-7v)=0



We calculate terms in parentheses: -(3(v+5)-7v), so:

3(v+5)-7v

We add all the numbers together, and all the variables

-7v+3(v+5)

We multiply parentheses

-7v+3v+15

We add all the numbers together, and all the variables

-4v+15

Back to the equation:

-(-4v+15)



We get rid of parentheses

4v-15+31=0

We add all the numbers together, and all the variables

4v+16=0

We move all terms containing v to the left, all other terms to the right

4v=-16

v=-16/4

v=-4

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