400x-(520+2x)=1200

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Solution for 400x-(520+2x)=1200 equation: 



400x-(520+2x)=1200

We move all terms to the left:

400x-(520+2x)-(1200)=0

We add all the numbers together, and all the variables

400x-(2x+520)-1200=0

We get rid of parentheses

400x-2x-520-1200=0

We add all the numbers together, and all the variables

398x-1720=0

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

398x=1720

x=1720/398

x=4+64/199

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