12x-99=6x-9

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Solution for 12x-99=6x-9 equation:


Simplifying
12x + -99 = 6x + -9

Reorder the terms:
-99 + 12x = 6x + -9

Reorder the terms:
-99 + 12x = -9 + 6x

Solving
-99 + 12x = -9 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-99 + 12x + -6x = -9 + 6x + -6x

Combine like terms: 12x + -6x = 6x
-99 + 6x = -9 + 6x + -6x

Combine like terms: 6x + -6x = 0
-99 + 6x = -9 + 0
-99 + 6x = -9

Add '99' to each side of the equation.
-99 + 99 + 6x = -9 + 99

Combine like terms: -99 + 99 = 0
0 + 6x = -9 + 99
6x = -9 + 99

Combine like terms: -9 + 99 = 90
6x = 90

Divide each side by '6'.
x = 15

Simplifying
x = 15

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