0.3x-2.1=0.4

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Solution for 0.3x-2.1=0.4 equation: 



0.3x-2.1=0.4

We move all terms to the left:

0.3x-2.1-(0.4)=0

We add all the numbers together, and all the variables

0.3x-2.5=0

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

0.3x=2.5

x=2.5/0.3

x=8+0.1/0.3

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