9v-21=5(v-5)

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Solution for 9v-21=5(v-5) equation:


Simplifying
9v + -21 = 5(v + -5)

Reorder the terms:
-21 + 9v = 5(v + -5)

Reorder the terms:
-21 + 9v = 5(-5 + v)
-21 + 9v = (-5 * 5 + v * 5)
-21 + 9v = (-25 + 5v)

Solving
-21 + 9v = -25 + 5v

Solving for variable 'v'.

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

Add '-5v' to each side of the equation.
-21 + 9v + -5v = -25 + 5v + -5v

Combine like terms: 9v + -5v = 4v
-21 + 4v = -25 + 5v + -5v

Combine like terms: 5v + -5v = 0
-21 + 4v = -25 + 0
-21 + 4v = -25

Add '21' to each side of the equation.
-21 + 21 + 4v = -25 + 21

Combine like terms: -21 + 21 = 0
0 + 4v = -25 + 21
4v = -25 + 21

Combine like terms: -25 + 21 = -4
4v = -4

Divide each side by '4'.
v = -1

Simplifying
v = -1

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