78+4v=-9v

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Solution for 78+4v=-9v equation: 



78+4v=-9v

We move all terms to the left:

78+4v-(-9v)=0

We get rid of parentheses

4v+9v+78=0

We add all the numbers together, and all the variables

13v+78=0

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

13v=-78

v=-78/13

v=-6

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