3x+9+x+x=180

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Solution for 3x+9+x+x=180 equation:


Simplifying
3x + 9 + x + x = 180

Reorder the terms:
9 + 3x + x + x = 180

Combine like terms: 3x + x = 4x
9 + 4x + x = 180

Combine like terms: 4x + x = 5x
9 + 5x = 180

Solving
9 + 5x = 180

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 5x = 180 + -9

Combine like terms: 9 + -9 = 0
0 + 5x = 180 + -9
5x = 180 + -9

Combine like terms: 180 + -9 = 171
5x = 171

Divide each side by '5'.
x = 34.2

Simplifying
x = 34.2

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