8v-21=2v-9

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Solution for 8v-21=2v-9 equation:


Simplifying
8v + -21 = 2v + -9

Reorder the terms:
-21 + 8v = 2v + -9

Reorder the terms:
-21 + 8v = -9 + 2v

Solving
-21 + 8v = -9 + 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 + 8v + -2v = -9 + 2v + -2v

Combine like terms: 8v + -2v = 6v
-21 + 6v = -9 + 2v + -2v

Combine like terms: 2v + -2v = 0
-21 + 6v = -9 + 0
-21 + 6v = -9

Add '21' to each side of the equation.
-21 + 21 + 6v = -9 + 21

Combine like terms: -21 + 21 = 0
0 + 6v = -9 + 21
6v = -9 + 21

Combine like terms: -9 + 21 = 12
6v = 12

Divide each side by '6'.
v = 2

Simplifying
v = 2

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