-4(9v-3)=21

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Solution for -4(9v-3)=21 equation: 


Simplifying
-4(9v + -3) = 21

Reorder the terms:
-4(-3 + 9v) = 21
(-3 * -4 + 9v * -4) = 21
(12 + -36v) = 21

Solving
12 + -36v = 21

Solving for variable 'v'.

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

Add '-12' to each side of the equation.
12 + -12 + -36v = 21 + -12

Combine like terms: 12 + -12 = 0
0 + -36v = 21 + -12
-36v = 21 + -12

Combine like terms: 21 + -12 = 9
-36v = 9

Divide each side by '-36'.
v = -0.25

Simplifying
v = -0.25

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