13v+v+31=18v+21

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Solution for 13v+v+31=18v+21 equation: 



13v+v+31=18v+21

We move all terms to the left:

13v+v+31-(18v+21)=0

We add all the numbers together, and all the variables

14v-(18v+21)+31=0

We get rid of parentheses

14v-18v-21+31=0

We add all the numbers together, and all the variables

-4v+10=0

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

-4v=-10

v=-10/-4

v=2+1/2

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