0.40x+0.20(100-x)=25

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Solution for 0.40x+0.20(100-x)=25 equation: 



0.40x+0.20(100-x)=25

We move all terms to the left:

0.40x+0.20(100-x)-(25)=0

We add all the numbers together, and all the variables

0.40x+0.20(-1x+100)-25=0

We multiply parentheses

0.40x-0.2x+20-25=0

We add all the numbers together, and all the variables

0.2x-5=0

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

0.2x=5

x=5/0.2

x=25

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