-21=-5v+3(v-5)

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Solution for -21=-5v+3(v-5) equation:


Simplifying
-21 = -5v + 3(v + -5)

Reorder the terms:
-21 = -5v + 3(-5 + v)
-21 = -5v + (-5 * 3 + v * 3)
-21 = -5v + (-15 + 3v)

Reorder the terms:
-21 = -15 + -5v + 3v

Combine like terms: -5v + 3v = -2v
-21 = -15 + -2v

Solving
-21 = -15 + -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 + 2v = -15 + -2v + 2v

Combine like terms: -2v + 2v = 0
-21 + 2v = -15 + 0
-21 + 2v = -15

Add '21' to each side of the equation.
-21 + 21 + 2v = -15 + 21

Combine like terms: -21 + 21 = 0
0 + 2v = -15 + 21
2v = -15 + 21

Combine like terms: -15 + 21 = 6
2v = 6

Divide each side by '2'.
v = 3

Simplifying
v = 3

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