0.9(0.4x+0.4)-1.9=12.86

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Solution for 0.9(0.4x+0.4)-1.9=12.86 equation: 



0.9(0.4x+0.4)-1.9=12.86

We move all terms to the left:

0.9(0.4x+0.4)-1.9-(12.86)=0

We add all the numbers together, and all the variables

0.9(0.4x+0.4)-14.76=0

We multiply parentheses

0x+0.36-14.76=0

We add all the numbers together, and all the variables

x-14.4=0

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

x=14.4

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