0.40x=0.20(100-x)

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Solution for 0.40x=0.20(100-x) equation: 



0.40x=0.20(100-x)

We move all terms to the left:

0.40x-(0.20(100-x))=0

We add all the numbers together, and all the variables

0.40x-(0.20(-1x+100))=0



We calculate terms in parentheses: -(0.20(-1x+100)), so:

0.20(-1x+100)

We multiply parentheses

-0.2x+20

Back to the equation:

-(-0.2x+20)



We get rid of parentheses

0.40x+0.2x-20=0

We add all the numbers together, and all the variables

0.6x-20=0

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

0.6x=20

x=20/0.6

x=33+0.2/0.6

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