-3v-21=-6v

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Solution for -3v-21=-6v equation:


Simplifying
-3v + -21 = -6v

Reorder the terms:
-21 + -3v = -6v

Solving
-21 + -3v = -6v

Solving for variable 'v'.

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

Add '6v' to each side of the equation.
-21 + -3v + 6v = -6v + 6v

Combine like terms: -3v + 6v = 3v
-21 + 3v = -6v + 6v

Combine like terms: -6v + 6v = 0
-21 + 3v = 0

Add '21' to each side of the equation.
-21 + 21 + 3v = 0 + 21

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

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

Divide each side by '3'.
v = 7

Simplifying
v = 7

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