2v-9=8v+21

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


Simplifying
2v + -9 = 8v + 21

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

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

Solving
-9 + 2v = 21 + 8v

Solving for variable 'v'.

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

Add '-8v' to each side of the equation.
-9 + 2v + -8v = 21 + 8v + -8v

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

Combine like terms: 8v + -8v = 0
-9 + -6v = 21 + 0
-9 + -6v = 21

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

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

Combine like terms: 21 + 9 = 30
-6v = 30

Divide each side by '-6'.
v = -5

Simplifying
v = -5

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