(140-x)+(180-x)+(120-x)=360

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Solution for (140-x)+(180-x)+(120-x)=360 equation:


Simplifying
(140 + -1x) + (180 + -1x) + (120 + -1x) = 360

Remove parenthesis around (140 + -1x)
140 + -1x + (180 + -1x) + (120 + -1x) = 360

Remove parenthesis around (180 + -1x)
140 + -1x + 180 + -1x + (120 + -1x) = 360

Remove parenthesis around (120 + -1x)
140 + -1x + 180 + -1x + 120 + -1x = 360

Reorder the terms:
140 + 180 + 120 + -1x + -1x + -1x = 360

Combine like terms: 140 + 180 = 320
320 + 120 + -1x + -1x + -1x = 360

Combine like terms: 320 + 120 = 440
440 + -1x + -1x + -1x = 360

Combine like terms: -1x + -1x = -2x
440 + -2x + -1x = 360

Combine like terms: -2x + -1x = -3x
440 + -3x = 360

Solving
440 + -3x = 360

Solving for variable 'x'.

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

Add '-440' to each side of the equation.
440 + -440 + -3x = 360 + -440

Combine like terms: 440 + -440 = 0
0 + -3x = 360 + -440
-3x = 360 + -440

Combine like terms: 360 + -440 = -80
-3x = -80

Divide each side by '-3'.
x = 26.66666667

Simplifying
x = 26.66666667

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