2.1-0.3x=0.4x

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Solution for 2.1-0.3x=0.4x equation: 



2.1-0.3x=0.4x

We move all terms to the left:

2.1-0.3x-(0.4x)=0

We add all the numbers together, and all the variables

-0.3x-(+0.4x)+2.1=0

We get rid of parentheses

-0.3x-0.4x+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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