120+100+x+120+120+x+110=720

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Solution for 120+100+x+120+120+x+110=720 equation: 


Simplifying
120 + 100 + x + 120 + 120 + x + 110 = 720

Reorder the terms:
120 + 100 + 120 + 120 + 110 + x + x = 720

Combine like terms: 120 + 100 = 220
220 + 120 + 120 + 110 + x + x = 720

Combine like terms: 220 + 120 = 340
340 + 120 + 110 + x + x = 720

Combine like terms: 340 + 120 = 460
460 + 110 + x + x = 720

Combine like terms: 460 + 110 = 570
570 + x + x = 720

Combine like terms: x + x = 2x
570 + 2x = 720

Solving
570 + 2x = 720

Solving for variable 'x'.

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

Add '-570' to each side of the equation.
570 + -570 + 2x = 720 + -570

Combine like terms: 570 + -570 = 0
0 + 2x = 720 + -570
2x = 720 + -570

Combine like terms: 720 + -570 = 150
2x = 150

Divide each side by '2'.
x = 75

Simplifying
x = 75

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