-21=-v

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Solution for -21=-v equation:


Simplifying
-21 = -1v

Solving
-21 = -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 + v = -1v + v

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

Add '21' to each side of the equation.
-21 + 21 + v = 0 + 21

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

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

Simplifying
v = 21

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