100x=400-20x-1.100-80x

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Solution for 100x=400-20x-1.100-80x equation: 



100x=400-20x-1.100-80x

We move all terms to the left:

100x-(400-20x-1.100-80x)=0

We add all the numbers together, and all the variables

100x-(-100x+398.9)=0

We get rid of parentheses

100x+100x-398.9=0

We add all the numbers together, and all the variables

200x-398.9=0

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

200x=398.9

x=398.9/200

x=1+68.586206896552/68.96551724138

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