2(400-x)+2x=800

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Solution for 2(400-x)+2x=800 equation: 



2(400-x)+2x=800

We move all terms to the left:

2(400-x)+2x-(800)=0

We add all the numbers together, and all the variables

2(-1x+400)+2x-800=0

We add all the numbers together, and all the variables

2x+2(-1x+400)-800=0

We multiply parentheses

2x-2x+800-800=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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