-5v-21=7(v+9)

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Solution for -5v-21=7(v+9) equation:


Simplifying
-5v + -21 = 7(v + 9)

Reorder the terms:
-21 + -5v = 7(v + 9)

Reorder the terms:
-21 + -5v = 7(9 + v)
-21 + -5v = (9 * 7 + v * 7)
-21 + -5v = (63 + 7v)

Solving
-21 + -5v = 63 + 7v

Solving for variable 'v'.

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

Add '-7v' to each side of the equation.
-21 + -5v + -7v = 63 + 7v + -7v

Combine like terms: -5v + -7v = -12v
-21 + -12v = 63 + 7v + -7v

Combine like terms: 7v + -7v = 0
-21 + -12v = 63 + 0
-21 + -12v = 63

Add '21' to each side of the equation.
-21 + 21 + -12v = 63 + 21

Combine like terms: -21 + 21 = 0
0 + -12v = 63 + 21
-12v = 63 + 21

Combine like terms: 63 + 21 = 84
-12v = 84

Divide each side by '-12'.
v = -7

Simplifying
v = -7

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