12-5v=2v-9

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Solution for 12-5v=2v-9 equation:


Simplifying
12 + -5v = 2v + -9

Reorder the terms:
12 + -5v = -9 + 2v

Solving
12 + -5v = -9 + 2v

Solving for variable 'v'.

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

Add '-2v' to each side of the equation.
12 + -5v + -2v = -9 + 2v + -2v

Combine like terms: -5v + -2v = -7v
12 + -7v = -9 + 2v + -2v

Combine like terms: 2v + -2v = 0
12 + -7v = -9 + 0
12 + -7v = -9

Add '-12' to each side of the equation.
12 + -12 + -7v = -9 + -12

Combine like terms: 12 + -12 = 0
0 + -7v = -9 + -12
-7v = -9 + -12

Combine like terms: -9 + -12 = -21
-7v = -21

Divide each side by '-7'.
v = 3

Simplifying
v = 3

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