2x+x-30+45=180

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Solution for 2x+x-30+45=180 equation: 


Simplifying
2x + x + -30 + 45 = 180

Reorder the terms:
-30 + 45 + 2x + x = 180

Combine like terms: -30 + 45 = 15
15 + 2x + x = 180

Combine like terms: 2x + x = 3x
15 + 3x = 180

Solving
15 + 3x = 180

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 3x = 180 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = 180 + -15
3x = 180 + -15

Combine like terms: 180 + -15 = 165
3x = 165

Divide each side by '3'.
x = 55

Simplifying
x = 55

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