7v+21=2(v-2)

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Solution for 7v+21=2(v-2) equation:


Simplifying
7v + 21 = 2(v + -2)

Reorder the terms:
21 + 7v = 2(v + -2)

Reorder the terms:
21 + 7v = 2(-2 + v)
21 + 7v = (-2 * 2 + v * 2)
21 + 7v = (-4 + 2v)

Solving
21 + 7v = -4 + 2v

Solving for variable 'v'.

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

Add '-2v' to each side of the equation.
21 + 7v + -2v = -4 + 2v + -2v

Combine like terms: 7v + -2v = 5v
21 + 5v = -4 + 2v + -2v

Combine like terms: 2v + -2v = 0
21 + 5v = -4 + 0
21 + 5v = -4

Add '-21' to each side of the equation.
21 + -21 + 5v = -4 + -21

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

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

Divide each side by '5'.
v = -5

Simplifying
v = -5

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