4x+129+9x+311=180

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Solution for 4x+129+9x+311=180 equation:


Simplifying
4x + 129 + 9x + 311 = 180

Reorder the terms:
129 + 311 + 4x + 9x = 180

Combine like terms: 129 + 311 = 440
440 + 4x + 9x = 180

Combine like terms: 4x + 9x = 13x
440 + 13x = 180

Solving
440 + 13x = 180

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 + 13x = 180 + -440

Combine like terms: 440 + -440 = 0
0 + 13x = 180 + -440
13x = 180 + -440

Combine like terms: 180 + -440 = -260
13x = -260

Divide each side by '13'.
x = -20

Simplifying
x = -20

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