15=-4v+7(v+3)

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Solution for 15=-4v+7(v+3) equation:


Simplifying
15 = -4v + 7(v + 3)

Reorder the terms:
15 = -4v + 7(3 + v)
15 = -4v + (3 * 7 + v * 7)
15 = -4v + (21 + 7v)

Reorder the terms:
15 = 21 + -4v + 7v

Combine like terms: -4v + 7v = 3v
15 = 21 + 3v

Solving
15 = 21 + 3v

Solving for variable 'v'.

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

Add '-3v' to each side of the equation.
15 + -3v = 21 + 3v + -3v

Combine like terms: 3v + -3v = 0
15 + -3v = 21 + 0
15 + -3v = 21

Add '-15' to each side of the equation.
15 + -15 + -3v = 21 + -15

Combine like terms: 15 + -15 = 0
0 + -3v = 21 + -15
-3v = 21 + -15

Combine like terms: 21 + -15 = 6
-3v = 6

Divide each side by '-3'.
v = -2

Simplifying
v = -2

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