5v-2v=21

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Solution for 5v-2v=21 equation: 


Simplifying
5v + -2v = 21

Combine like terms: 5v + -2v = 3v
3v = 21

Solving
3v = 21

Solving for variable 'v'.

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

Divide each side by '3'.
v = 7

Simplifying
v = 7

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