1.9=3.1-0.3x

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Solution for 1.9=3.1-0.3x equation: 



1.9=3.1-0.3x

We move all terms to the left:

1.9-(3.1-0.3x)=0

We add all the numbers together, and all the variables

-(-0.3x+3.1)+1.9=0

We get rid of parentheses

0.3x-3.1+1.9=0

We add all the numbers together, and all the variables

0.3x-1.2=0

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

0.3x=1.2

x=1.2/0.3

x=4

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