(X+12)+(x-9)+x=180

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Solution for (X+12)+(x-9)+x=180 equation:


Simplifying
(X + 12) + (x + -9) + x = 180

Reorder the terms:
(12 + X) + (x + -9) + x = 180

Remove parenthesis around (12 + X)
12 + X + (x + -9) + x = 180

Reorder the terms:
12 + X + (-9 + x) + x = 180

Remove parenthesis around (-9 + x)
12 + X + -9 + x + x = 180

Reorder the terms:
12 + -9 + X + x + x = 180

Combine like terms: 12 + -9 = 3
3 + X + x + x = 180

Combine like terms: x + x = 2x
3 + X + 2x = 180

Solving
3 + X + 2x = 180

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + X + -3 + 2x = 180 + -3

Reorder the terms:
3 + -3 + X + 2x = 180 + -3

Combine like terms: 3 + -3 = 0
0 + X + 2x = 180 + -3
X + 2x = 180 + -3

Combine like terms: 180 + -3 = 177
X + 2x = 177

Add '-2x' to each side of the equation.
X + 2x + -2x = 177 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 177 + -2x
X = 177 + -2x

Simplifying
X = 177 + -2x

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