9x+7=12x-8

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Solution for 9x+7=12x-8 equation:


Simplifying
9x + 7 = 12x + -8

Reorder the terms:
7 + 9x = 12x + -8

Reorder the terms:
7 + 9x = -8 + 12x

Solving
7 + 9x = -8 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
7 + 9x + -12x = -8 + 12x + -12x

Combine like terms: 9x + -12x = -3x
7 + -3x = -8 + 12x + -12x

Combine like terms: 12x + -12x = 0
7 + -3x = -8 + 0
7 + -3x = -8

Add '-7' to each side of the equation.
7 + -7 + -3x = -8 + -7

Combine like terms: 7 + -7 = 0
0 + -3x = -8 + -7
-3x = -8 + -7

Combine like terms: -8 + -7 = -15
-3x = -15

Divide each side by '-3'.
x = 5

Simplifying
x = 5

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