x-10+2x-5+2x+15+x+x-20=540

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Solution for x-10+2x-5+2x+15+x+x-20=540 equation: 


Simplifying
x + -10 + 2x + -5 + 2x + 15 + x + x + -20 = 540

Reorder the terms:
-10 + -5 + 15 + -20 + x + 2x + 2x + x + x = 540

Combine like terms: -10 + -5 = -15
-15 + 15 + -20 + x + 2x + 2x + x + x = 540

Combine like terms: -15 + 15 = 0
0 + -20 + x + 2x + 2x + x + x = 540
-20 + x + 2x + 2x + x + x = 540

Combine like terms: x + 2x = 3x
-20 + 3x + 2x + x + x = 540

Combine like terms: 3x + 2x = 5x
-20 + 5x + x + x = 540

Combine like terms: 5x + x = 6x
-20 + 6x + x = 540

Combine like terms: 6x + x = 7x
-20 + 7x = 540

Solving
-20 + 7x = 540

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 7x = 540 + 20

Combine like terms: -20 + 20 = 0
0 + 7x = 540 + 20
7x = 540 + 20

Combine like terms: 540 + 20 = 560
7x = 560

Divide each side by '7'.
x = 80

Simplifying
x = 80

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