31=2v-9

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Solution for 31=2v-9 equation:


Simplifying
31 = 2v + -9

Reorder the terms:
31 = -9 + 2v

Solving
31 = -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.
31 + -2v = -9 + 2v + -2v

Combine like terms: 2v + -2v = 0
31 + -2v = -9 + 0
31 + -2v = -9

Add '-31' to each side of the equation.
31 + -31 + -2v = -9 + -31

Combine like terms: 31 + -31 = 0
0 + -2v = -9 + -31
-2v = -9 + -31

Combine like terms: -9 + -31 = -40
-2v = -40

Divide each side by '-2'.
v = 20

Simplifying
v = 20

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