-9v+21=-6(v-7)

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Solution for -9v+21=-6(v-7) equation:


Simplifying
-9v + 21 = -6(v + -7)

Reorder the terms:
21 + -9v = -6(v + -7)

Reorder the terms:
21 + -9v = -6(-7 + v)
21 + -9v = (-7 * -6 + v * -6)
21 + -9v = (42 + -6v)

Solving
21 + -9v = 42 + -6v

Solving for variable 'v'.

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

Add '6v' to each side of the equation.
21 + -9v + 6v = 42 + -6v + 6v

Combine like terms: -9v + 6v = -3v
21 + -3v = 42 + -6v + 6v

Combine like terms: -6v + 6v = 0
21 + -3v = 42 + 0
21 + -3v = 42

Add '-21' to each side of the equation.
21 + -21 + -3v = 42 + -21

Combine like terms: 21 + -21 = 0
0 + -3v = 42 + -21
-3v = 42 + -21

Combine like terms: 42 + -21 = 21
-3v = 21

Divide each side by '-3'.
v = -7

Simplifying
v = -7

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