3x-9+6x+9=180

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Solution for 3x-9+6x+9=180 equation: 


Simplifying
3x + -9 + 6x + 9 = 180

Reorder the terms:
-9 + 9 + 3x + 6x = 180

Combine like terms: -9 + 9 = 0
0 + 3x + 6x = 180
3x + 6x = 180

Combine like terms: 3x + 6x = 9x
9x = 180

Solving
9x = 180

Solving for variable 'x'.

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

Divide each side by '9'.
x = 20

Simplifying
x = 20

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