-3v+21=-9(v-5)

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Solution for -3v+21=-9(v-5) equation:


Simplifying
-3v + 21 = -9(v + -5)

Reorder the terms:
21 + -3v = -9(v + -5)

Reorder the terms:
21 + -3v = -9(-5 + v)
21 + -3v = (-5 * -9 + v * -9)
21 + -3v = (45 + -9v)

Solving
21 + -3v = 45 + -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.
21 + -3v + 9v = 45 + -9v + 9v

Combine like terms: -3v + 9v = 6v
21 + 6v = 45 + -9v + 9v

Combine like terms: -9v + 9v = 0
21 + 6v = 45 + 0
21 + 6v = 45

Add '-21' to each side of the equation.
21 + -21 + 6v = 45 + -21

Combine like terms: 21 + -21 = 0
0 + 6v = 45 + -21
6v = 45 + -21

Combine like terms: 45 + -21 = 24
6v = 24

Divide each side by '6'.
v = 4

Simplifying
v = 4

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