1,200-40x=400+50x

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Solution for 1,200-40x=400+50x equation: 



1.200-40x=400+50x

We move all terms to the left:

1.200-40x-(400+50x)=0

We add all the numbers together, and all the variables

-40x-(50x+400)+1.200=0

We add all the numbers together, and all the variables

-40x-(50x+400)+1.2=0

We get rid of parentheses

-40x-50x-400+1.2=0

We add all the numbers together, and all the variables

-90x-398.8=0

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

-90x=398.8

x=398.8/-90

x=-4+13.8571428571/32.1428571429

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