x+(x+20)+(x+115)=180

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Solution for x+(x+20)+(x+115)=180 equation:


Simplifying
x + (x + 20) + (x + 115) = 180

Reorder the terms:
x + (20 + x) + (x + 115) = 180

Remove parenthesis around (20 + x)
x + 20 + x + (x + 115) = 180

Reorder the terms:
x + 20 + x + (115 + x) = 180

Remove parenthesis around (115 + x)
x + 20 + x + 115 + x = 180

Reorder the terms:
20 + 115 + x + x + x = 180

Combine like terms: 20 + 115 = 135
135 + x + x + x = 180

Combine like terms: x + x = 2x
135 + 2x + x = 180

Combine like terms: 2x + x = 3x
135 + 3x = 180

Solving
135 + 3x = 180

Solving for variable 'x'.

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

Add '-135' to each side of the equation.
135 + -135 + 3x = 180 + -135

Combine like terms: 135 + -135 = 0
0 + 3x = 180 + -135
3x = 180 + -135

Combine like terms: 180 + -135 = 45
3x = 45

Divide each side by '3'.
x = 15

Simplifying
x = 15

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