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

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


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

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

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

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

Combine like terms: 90 + 180 = 270
270 + -1x + -1x = x

Combine like terms: -1x + -1x = -2x
270 + -2x = x

Solving
270 + -2x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
270 + -2x + -1x = x + -1x

Combine like terms: -2x + -1x = -3x
270 + -3x = x + -1x

Combine like terms: x + -1x = 0
270 + -3x = 0

Add '-270' to each side of the equation.
270 + -270 + -3x = 0 + -270

Combine like terms: 270 + -270 = 0
0 + -3x = 0 + -270
-3x = 0 + -270

Combine like terms: 0 + -270 = -270
-3x = -270

Divide each side by '-3'.
x = 90

Simplifying
x = 90

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