2v-21=-(v-3)

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Solution for 2v-21=-(v-3) equation:


Simplifying
2v + -21 = -1(v + -3)

Reorder the terms:
-21 + 2v = -1(v + -3)

Reorder the terms:
-21 + 2v = -1(-3 + v)
-21 + 2v = (-3 * -1 + v * -1)
-21 + 2v = (3 + -1v)

Solving
-21 + 2v = 3 + -1v

Solving for variable 'v'.

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

Add 'v' to each side of the equation.
-21 + 2v + v = 3 + -1v + v

Combine like terms: 2v + v = 3v
-21 + 3v = 3 + -1v + v

Combine like terms: -1v + v = 0
-21 + 3v = 3 + 0
-21 + 3v = 3

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

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

Combine like terms: 3 + 21 = 24
3v = 24

Divide each side by '3'.
v = 8

Simplifying
v = 8

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