100+100+120+x=540

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Solution for 100+100+120+x=540 equation: 


Simplifying
100 + 100 + 120 + x = 540

Combine like terms: 100 + 100 = 200
200 + 120 + x = 540

Combine like terms: 200 + 120 = 320
320 + x = 540

Solving
320 + x = 540

Solving for variable 'x'.

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

Add '-320' to each side of the equation.
320 + -320 + x = 540 + -320

Combine like terms: 320 + -320 = 0
0 + x = 540 + -320
x = 540 + -320

Combine like terms: 540 + -320 = 220
x = 220

Simplifying
x = 220

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