-90=4v-9-12v+9

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Solution for -90=4v-9-12v+9 equation:


Simplifying
-90 = 4v + -9 + -12v + 9

Reorder the terms:
-90 = -9 + 9 + 4v + -12v

Combine like terms: -9 + 9 = 0
-90 = 0 + 4v + -12v
-90 = 4v + -12v

Combine like terms: 4v + -12v = -8v
-90 = -8v

Solving
-90 = -8v

Solving for variable 'v'.

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

Add '8v' to each side of the equation.
-90 + 8v = -8v + 8v

Combine like terms: -8v + 8v = 0
-90 + 8v = 0

Add '90' to each side of the equation.
-90 + 90 + 8v = 0 + 90

Combine like terms: -90 + 90 = 0
0 + 8v = 0 + 90
8v = 0 + 90

Combine like terms: 0 + 90 = 90
8v = 90

Divide each side by '8'.
v = 11.25

Simplifying
v = 11.25

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