6x+9+9x-15=180

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Solution for 6x+9+9x-15=180 equation:


Simplifying
6x + 9 + 9x + -15 = 180

Reorder the terms:
9 + -15 + 6x + 9x = 180

Combine like terms: 9 + -15 = -6
-6 + 6x + 9x = 180

Combine like terms: 6x + 9x = 15x
-6 + 15x = 180

Solving
-6 + 15x = 180

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 15x = 180 + 6

Combine like terms: -6 + 6 = 0
0 + 15x = 180 + 6
15x = 180 + 6

Combine like terms: 180 + 6 = 186
15x = 186

Divide each side by '15'.
x = 12.4

Simplifying
x = 12.4

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