8.6=x-4.2

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Solution for 8.6=x-4.2 equation: 



8.6=x-4.2

We move all terms to the left:

8.6-(x-4.2)=0

We get rid of parentheses

-x+4.2+8.6=0

We add all the numbers together, and all the variables

-1x+12.8=0

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

-x=-12.8

x=-12.8/-1

x=12+0.8/1

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