0.3x-2.1=0.9+0.2x

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Solution for 0.3x-2.1=0.9+0.2x equation: 



0.3x-2.1=0.9+0.2x

We move all terms to the left:

0.3x-2.1-(0.9+0.2x)=0

We add all the numbers together, and all the variables

0.3x-(0.2x+0.9)-2.1=0

We get rid of parentheses

0.3x-0.2x-0.9-2.1=0

We add all the numbers together, and all the variables

0.1x-3=0

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

0.1x=3

x=3/0.1

x=30

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