3v-4v=81

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Solution for 3v-4v=81 equation: 


Simplifying
3v + -4v = 81

Combine like terms: 3v + -4v = -1v
-1v = 81

Solving
-1v = 81

Solving for variable 'v'.

Move all terms containing v to the left, all other terms to the right.

Divide each side by '-1'.
v = -81

Simplifying
v = -81

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