7v-15=4v+8v

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Solution for 7v-15=4v+8v equation: 



7v-15=4v+8v

We move all terms to the left:

7v-15-(4v+8v)=0

We add all the numbers together, and all the variables

7v-(+12v)-15=0

We get rid of parentheses

7v-12v-15=0

We add all the numbers together, and all the variables

-5v-15=0

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

-5v=15

v=15/-5

v=-3

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