2x+x-45+x-45=540

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Solution for 2x+x-45+x-45=540 equation: 


Simplifying
2x + x + -45 + x + -45 = 540

Reorder the terms:
-45 + -45 + 2x + x + x = 540

Combine like terms: -45 + -45 = -90
-90 + 2x + x + x = 540

Combine like terms: 2x + x = 3x
-90 + 3x + x = 540

Combine like terms: 3x + x = 4x
-90 + 4x = 540

Solving
-90 + 4x = 540

Solving for variable 'x'.

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

Add '90' to each side of the equation.
-90 + 90 + 4x = 540 + 90

Combine like terms: -90 + 90 = 0
0 + 4x = 540 + 90
4x = 540 + 90

Combine like terms: 540 + 90 = 630
4x = 630

Divide each side by '4'.
x = 157.5

Simplifying
x = 157.5

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