7v+5=9v-21

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Solution for 7v+5=9v-21 equation:


Simplifying
7v + 5 = 9v + -21

Reorder the terms:
5 + 7v = 9v + -21

Reorder the terms:
5 + 7v = -21 + 9v

Solving
5 + 7v = -21 + 9v

Solving for variable 'v'.

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

Add '-9v' to each side of the equation.
5 + 7v + -9v = -21 + 9v + -9v

Combine like terms: 7v + -9v = -2v
5 + -2v = -21 + 9v + -9v

Combine like terms: 9v + -9v = 0
5 + -2v = -21 + 0
5 + -2v = -21

Add '-5' to each side of the equation.
5 + -5 + -2v = -21 + -5

Combine like terms: 5 + -5 = 0
0 + -2v = -21 + -5
-2v = -21 + -5

Combine like terms: -21 + -5 = -26
-2v = -26

Divide each side by '-2'.
v = 13

Simplifying
v = 13

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