2x+(x+20)+3x+x=540

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Solution for 2x+(x+20)+3x+x=540 equation: 



2X+(X+20)+3X+X=540

We move all terms to the left:

2X+(X+20)+3X+X-(540)=0

We add all the numbers together, and all the variables

6X+(X+20)-540=0

We get rid of parentheses

6X+X+20-540=0

We add all the numbers together, and all the variables

7X-520=0

We move all terms containing X to the left, all other terms to the right

7X=520

X=520/7

X=74+2/7

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