-9=-7v+3(v-7)

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Solution for -9=-7v+3(v-7) equation:


Simplifying
-9 = -7v + 3(v + -7)

Reorder the terms:
-9 = -7v + 3(-7 + v)
-9 = -7v + (-7 * 3 + v * 3)
-9 = -7v + (-21 + 3v)

Reorder the terms:
-9 = -21 + -7v + 3v

Combine like terms: -7v + 3v = -4v
-9 = -21 + -4v

Solving
-9 = -21 + -4v

Solving for variable 'v'.

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

Add '4v' to each side of the equation.
-9 + 4v = -21 + -4v + 4v

Combine like terms: -4v + 4v = 0
-9 + 4v = -21 + 0
-9 + 4v = -21

Add '9' to each side of the equation.
-9 + 9 + 4v = -21 + 9

Combine like terms: -9 + 9 = 0
0 + 4v = -21 + 9
4v = -21 + 9

Combine like terms: -21 + 9 = -12
4v = -12

Divide each side by '4'.
v = -3

Simplifying
v = -3

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