12x-15=15x+9

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Solution for 12x-15=15x+9 equation:


Simplifying
12x + -15 = 15x + 9

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

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

Solving
-15 + 12x = 9 + 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.
-15 + 12x + -15x = 9 + 15x + -15x

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

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

Add '15' to each side of the equation.
-15 + 15 + -3x = 9 + 15

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

Combine like terms: 9 + 15 = 24
-3x = 24

Divide each side by '-3'.
x = -8

Simplifying
x = -8

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