-21=-5+4v

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Solution for -21=-5+4v equation:


Simplifying
-21 = -5 + 4v

Solving
-21 = -5 + 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.
-21 + -4v = -5 + 4v + -4v

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

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

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

Combine like terms: -5 + 21 = 16
-4v = 16

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

Simplifying
v = -4

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