x-60+x-40+130+120+110+x-20=720

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Solution for x-60+x-40+130+120+110+x-20=720 equation: 


Simplifying
x + -60 + x + -40 + 130 + 120 + 110 + x + -20 = 720

Reorder the terms:
-60 + -40 + 130 + 120 + 110 + -20 + x + x + x = 720

Combine like terms: -60 + -40 = -100
-100 + 130 + 120 + 110 + -20 + x + x + x = 720

Combine like terms: -100 + 130 = 30
30 + 120 + 110 + -20 + x + x + x = 720

Combine like terms: 30 + 120 = 150
150 + 110 + -20 + x + x + x = 720

Combine like terms: 150 + 110 = 260
260 + -20 + x + x + x = 720

Combine like terms: 260 + -20 = 240
240 + x + x + x = 720

Combine like terms: x + x = 2x
240 + 2x + x = 720

Combine like terms: 2x + x = 3x
240 + 3x = 720

Solving
240 + 3x = 720

Solving for variable 'x'.

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

Add '-240' to each side of the equation.
240 + -240 + 3x = 720 + -240

Combine like terms: 240 + -240 = 0
0 + 3x = 720 + -240
3x = 720 + -240

Combine like terms: 720 + -240 = 480
3x = 480

Divide each side by '3'.
x = 160

Simplifying
x = 160

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