-0.3x+2.1+x=3-0.5x

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Solution for -0.3x+2.1+x=3-0.5x equation: 



-0.3x+2.1+x=3-0.5x

We move all terms to the left:

-0.3x+2.1+x-(3-0.5x)=0

We add all the numbers together, and all the variables

-0.3x+x-(-0.5x+3)+2.1=0

We add all the numbers together, and all the variables

0.7x-(-0.5x+3)+2.1=0

We get rid of parentheses

0.7x+0.5x-3+2.1=0

We add all the numbers together, and all the variables

1.2x-0.9=0

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

1.2x=0.9

x=0.9/1.2

x=0.9/1.2

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