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

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


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

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

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

Combine like terms: x + 2x = 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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