.3x+2x=12-x

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Solution for .3x+2x=12-x equation: 



.3x+2x=12-x

We move all terms to the left:

.3x+2x-(12-x)=0

We add all the numbers together, and all the variables

.3x+2x-(-1x+12)=0

We add all the numbers together, and all the variables

2.3x-(-1x+12)=0

We get rid of parentheses

2.3x+1x-12=0

We add all the numbers together, and all the variables

3.3x-12=0

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

3.3x=12

x=12/3.3

x=3+2.1/3.3

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