x+x-9+x+15=180

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


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

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

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

Combine like terms: x + x = 2x
6 + 2x + x = 180

Combine like terms: 2x + x = 3x
6 + 3x = 180

Solving
6 + 3x = 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 + 3x = 180 + -6

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

Combine like terms: 180 + -6 = 174
3x = 174

Divide each side by '3'.
x = 58

Simplifying
x = 58

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