x+20+x-15+x-45=180

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Solution for x+20+x-15+x-45=180 equation: 


Simplifying
x + 20 + x + -15 + x + -45 = 180

Reorder the terms:
20 + -15 + -45 + x + x + x = 180

Combine like terms: 20 + -15 = 5
5 + -45 + x + x + x = 180

Combine like terms: 5 + -45 = -40
-40 + x + x + x = 180

Combine like terms: x + x = 2x
-40 + 2x + x = 180

Combine like terms: 2x + x = 3x
-40 + 3x = 180

Solving
-40 + 3x = 180

Solving for variable 'x'.

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

Add '40' to each side of the equation.
-40 + 40 + 3x = 180 + 40

Combine like terms: -40 + 40 = 0
0 + 3x = 180 + 40
3x = 180 + 40

Combine like terms: 180 + 40 = 220
3x = 220

Divide each side by '3'.
x = 73.33333333

Simplifying
x = 73.33333333

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