21=-5v-4

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Solution for 21=-5v-4 equation:


Simplifying
21 = -5v + -4

Reorder the terms:
21 = -4 + -5v

Solving
21 = -4 + -5v

Solving for variable 'v'.

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

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

Combine like terms: -5v + 5v = 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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