(X-60)+(X-20)+X=180

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Solution for (X-60)+(X-20)+X=180 equation: 


Simplifying
(X + -60) + (X + -20) + X = 180

Reorder the terms:
(-60 + X) + (X + -20) + X = 180

Remove parenthesis around (-60 + X)
-60 + X + (X + -20) + X = 180

Reorder the terms:
-60 + X + (-20 + X) + X = 180

Remove parenthesis around (-20 + X)
-60 + X + -20 + X + X = 180

Reorder the terms:
-60 + -20 + X + X + X = 180

Combine like terms: -60 + -20 = -80
-80 + X + X + X = 180

Combine like terms: X + X = 2X
-80 + 2X + X = 180

Combine like terms: 2X + X = 3X
-80 + 3X = 180

Solving
-80 + 3X = 180

Solving for variable 'X'.

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

Add '80' to each side of the equation.
-80 + 80 + 3X = 180 + 80

Combine like terms: -80 + 80 = 0
0 + 3X = 180 + 80
3X = 180 + 80

Combine like terms: 180 + 80 = 260
3X = 260

Divide each side by '3'.
X = 86.66666667

Simplifying
X = 86.66666667

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