35+x+x+40+129=180

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Solution for 35+x+x+40+129=180 equation: 


Simplifying
35 + x + x + 40 + 129 = 180

Reorder the terms:
35 + 40 + 129 + x + x = 180

Combine like terms: 35 + 40 = 75
75 + 129 + x + x = 180

Combine like terms: 75 + 129 = 204
204 + x + x = 180

Combine like terms: x + x = 2x
204 + 2x = 180

Solving
204 + 2x = 180

Solving for variable 'x'.

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

Add '-204' to each side of the equation.
204 + -204 + 2x = 180 + -204

Combine like terms: 204 + -204 = 0
0 + 2x = 180 + -204
2x = 180 + -204

Combine like terms: 180 + -204 = -24
2x = -24

Divide each side by '2'.
x = -12

Simplifying
x = -12

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