1,200-40x=400+40x

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Solution for 1,200-40x=400+40x equation: 



1.200-40x=400+40x

We move all terms to the left:

1.200-40x-(400+40x)=0

We add all the numbers together, and all the variables

-40x-(40x+400)+1.200=0

We add all the numbers together, and all the variables

-40x-(40x+400)+1.2=0

We get rid of parentheses

-40x-40x-400+1.2=0

We add all the numbers together, and all the variables

-80x-398.8=0

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

-80x=398.8

x=398.8/-80

x=-4+28.142857142857/28.571428571428

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