0.4x+0.6(18-x)=9

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Solution for 0.4x+0.6(18-x)=9 equation: 



0.4x+0.6(18-x)=9

We move all terms to the left:

0.4x+0.6(18-x)-(9)=0

We add all the numbers together, and all the variables

0.4x+0.6(-1x+18)-9=0

We multiply parentheses

0.4x-0.6x+10.8-9=0

We add all the numbers together, and all the variables

-0.2x+1.8=0

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

-0.2x=-1.8

x=-1.8/-0.2

x=+9

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