0.8x-2.7=3.9x+1.5

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Solution for 0.8x-2.7=3.9x+1.5 equation: 



0.8x-2.7=3.9x+1.5

We move all terms to the left:

0.8x-2.7-(3.9x+1.5)=0

We get rid of parentheses

0.8x-3.9x-1.5-2.7=0

We add all the numbers together, and all the variables

-3.1x-4.2=0

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

-3.1x=4.2

x=4.2/-3.1

x=-1+1/2.81818181818

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