2x+x+(60-x)+90=180

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Solution for 2x+x+(60-x)+90=180 equation: 


Simplifying
2x + x + (60 + -1x) + 90 = 180

Remove parenthesis around (60 + -1x)
2x + x + 60 + -1x + 90 = 180

Reorder the terms:
60 + 90 + 2x + x + -1x = 180

Combine like terms: 60 + 90 = 150
150 + 2x + x + -1x = 180

Combine like terms: 2x + x = 3x
150 + 3x + -1x = 180

Combine like terms: 3x + -1x = 2x
150 + 2x = 180

Solving
150 + 2x = 180

Solving for variable 'x'.

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

Add '-150' to each side of the equation.
150 + -150 + 2x = 180 + -150

Combine like terms: 150 + -150 = 0
0 + 2x = 180 + -150
2x = 180 + -150

Combine like terms: 180 + -150 = 30
2x = 30

Divide each side by '2'.
x = 15

Simplifying
x = 15

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