12x-9=9x+15

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


Simplifying
12x + -9 = 9x + 15

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

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

Solving
-9 + 12x = 15 + 9x

Solving for variable 'x'.

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

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

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

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

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

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

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

Divide each side by '3'.
x = 8

Simplifying
x = 8

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