0.3x+3.1=0.7x-0.1

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Solution for 0.3x+3.1=0.7x-0.1 equation: 



0.3x+3.1=0.7x-0.1

We move all terms to the left:

0.3x+3.1-(0.7x-0.1)=0

We get rid of parentheses

0.3x-0.7x+0.1+3.1=0

We add all the numbers together, and all the variables

-0.4x+3.2=0

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

-0.4x=-3.2

x=-3.2/-0.4

x=+8

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