(x+30)+2x+(90-x)=180

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Solution for (x+30)+2x+(90-x)=180 equation:


Simplifying
(x + 30) + 2x + (90 + -1x) = 180

Reorder the terms:
(30 + x) + 2x + (90 + -1x) = 180

Remove parenthesis around (30 + x)
30 + x + 2x + (90 + -1x) = 180

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

Reorder the terms:
30 + 90 + x + 2x + -1x = 180

Combine like terms: 30 + 90 = 120
120 + x + 2x + -1x = 180

Combine like terms: x + 2x = 3x
120 + 3x + -1x = 180

Combine like terms: 3x + -1x = 2x
120 + 2x = 180

Solving
120 + 2x = 180

Solving for variable 'x'.

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

Add '-120' to each side of the equation.
120 + -120 + 2x = 180 + -120

Combine like terms: 120 + -120 = 0
0 + 2x = 180 + -120
2x = 180 + -120

Combine like terms: 180 + -120 = 60
2x = 60

Divide each side by '2'.
x = 30

Simplifying
x = 30

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