X+x-31+x+42=180

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Solution for X+x-31+x+42=180 equation:


Simplifying
X + x + -31 + x + 42 = 180

Reorder the terms:
-31 + 42 + X + x + x = 180

Combine like terms: -31 + 42 = 11
11 + X + x + x = 180

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

Solving
11 + X + 2x = 180

Solving for variable 'X'.

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

Add '-11' to each side of the equation.
11 + X + -11 + 2x = 180 + -11

Reorder the terms:
11 + -11 + X + 2x = 180 + -11

Combine like terms: 11 + -11 = 0
0 + X + 2x = 180 + -11
X + 2x = 180 + -11

Combine like terms: 180 + -11 = 169
X + 2x = 169

Add '-2x' to each side of the equation.
X + 2x + -2x = 169 + -2x

Combine like terms: 2x + -2x = 0
X + 0 = 169 + -2x
X = 169 + -2x

Simplifying
X = 169 + -2x

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