12x-9=15x

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Solution for 12x-9=15x equation:


Simplifying
12x + -9 = 15x

Reorder the terms:
-9 + 12x = 15x

Solving
-9 + 12x = 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
-9 + 12x + -15x = 15x + -15x

Combine like terms: 12x + -15x = -3x
-9 + -3x = 15x + -15x

Combine like terms: 15x + -15x = 0
-9 + -3x = 0

Add '9' to each side of the equation.
-9 + 9 + -3x = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -3x = 0 + 9
-3x = 0 + 9

Combine like terms: 0 + 9 = 9
-3x = 9

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

Simplifying
x = -3

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