7v-42=9(v-4)

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Solution for 7v-42=9(v-4) equation:


Simplifying
7v + -42 = 9(v + -4)

Reorder the terms:
-42 + 7v = 9(v + -4)

Reorder the terms:
-42 + 7v = 9(-4 + v)
-42 + 7v = (-4 * 9 + v * 9)
-42 + 7v = (-36 + 9v)

Solving
-42 + 7v = -36 + 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.
-42 + 7v + -9v = -36 + 9v + -9v

Combine like terms: 7v + -9v = -2v
-42 + -2v = -36 + 9v + -9v

Combine like terms: 9v + -9v = 0
-42 + -2v = -36 + 0
-42 + -2v = -36

Add '42' to each side of the equation.
-42 + 42 + -2v = -36 + 42

Combine like terms: -42 + 42 = 0
0 + -2v = -36 + 42
-2v = -36 + 42

Combine like terms: -36 + 42 = 6
-2v = 6

Divide each side by '-2'.
v = -3

Simplifying
v = -3

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