3-9v=84

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Solution for 3-9v=84 equation: 



3-9v=84

We move all terms to the left:

3-9v-(84)=0

We add all the numbers together, and all the variables

-9v-81=0

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

-9v=81

v=81/-9

v=-9

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