3v-21=9(v+1)

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Solution for 3v-21=9(v+1) equation:


Simplifying
3v + -21 = 9(v + 1)

Reorder the terms:
-21 + 3v = 9(v + 1)

Reorder the terms:
-21 + 3v = 9(1 + v)
-21 + 3v = (1 * 9 + v * 9)
-21 + 3v = (9 + 9v)

Solving
-21 + 3v = 9 + 9v

Solving for variable 'v'.

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

Add '-9v' to each side of the equation.
-21 + 3v + -9v = 9 + 9v + -9v

Combine like terms: 3v + -9v = -6v
-21 + -6v = 9 + 9v + -9v

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

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

Simplifying
v = -5

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