.2x+3.1-2.1x=0.3(x-5)+0.2

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Solution for .2x+3.1-2.1x=0.3(x-5)+0.2 equation: 



.2x+3.1-2.1x=0.3(x-5)+0.2

We move all terms to the left:

.2x+3.1-2.1x-(0.3(x-5)+0.2)=0

We add all the numbers together, and all the variables

-1.9x-(0.3(x-5)+0.2)+3.1=0



We calculate terms in parentheses: -(0.3(x-5)+0.2), so:

0.3(x-5)+0.2

We multiply parentheses

0.3x-1.5+0.2

We add all the numbers together, and all the variables

0.3x-1.3

Back to the equation:

-(0.3x-1.3)



We get rid of parentheses

-1.9x-0.3x+1.3+3.1=0

We add all the numbers together, and all the variables

-2.2x+4.4=0

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

-2.2x=-4.4

x=-4.4/-2.2

x=+2

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