x-0.3x=2.1

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Solution for x-0.3x=2.1 equation: 



x-0.3x=2.1

We move all terms to the left:

x-0.3x-(2.1)=0

We add all the numbers together, and all the variables

0.7x-2.1=0

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

0.7x=2.1

x=2.1/0.7

x=3+4.4408920985006E-16/0.7

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