(x-15)+(2x-165)+90=180

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Solution for (x-15)+(2x-165)+90=180 equation: 


Simplifying
(x + -15) + (2x + -165) + 90 = 180

Reorder the terms:
(-15 + x) + (2x + -165) + 90 = 180

Remove parenthesis around (-15 + x)
-15 + x + (2x + -165) + 90 = 180

Reorder the terms:
-15 + x + (-165 + 2x) + 90 = 180

Remove parenthesis around (-165 + 2x)
-15 + x + -165 + 2x + 90 = 180

Reorder the terms:
-15 + -165 + 90 + x + 2x = 180

Combine like terms: -15 + -165 = -180
-180 + 90 + x + 2x = 180

Combine like terms: -180 + 90 = -90
-90 + x + 2x = 180

Combine like terms: x + 2x = 3x
-90 + 3x = 180

Solving
-90 + 3x = 180

Solving for variable 'x'.

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

Add '90' to each side of the equation.
-90 + 90 + 3x = 180 + 90

Combine like terms: -90 + 90 = 0
0 + 3x = 180 + 90
3x = 180 + 90

Combine like terms: 180 + 90 = 270
3x = 270

Divide each side by '3'.
x = 90

Simplifying
x = 90

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