2x+2(2+x)=520

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Solution for 2x+2(2+x)=520 equation: 



2x+2(2+x)=520

We move all terms to the left:

2x+2(2+x)-(520)=0

We add all the numbers together, and all the variables

2x+2(x+2)-520=0

We multiply parentheses

2x+2x+4-520=0

We add all the numbers together, and all the variables

4x-516=0

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

4x=516

x=516/4

x=129

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