0.3(-x+7)=0.2(-x-1)

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Solution for 0.3(-x+7)=0.2(-x-1) equation: 



0.3(-x+7)=0.2(-x-1)

We move all terms to the left:

0.3(-x+7)-(0.2(-x-1))=0

We add all the numbers together, and all the variables

0.3(-1x+7)-(0.2(-1x-1))=0

We multiply parentheses

-0.3x-(0.2(-1x-1))+2.1=0



We calculate terms in parentheses: -(0.2(-1x-1)), so:

0.2(-1x-1)

We multiply parentheses

-0.2x-0.2

Back to the equation:

-(-0.2x-0.2)



We get rid of parentheses

-0.3x+0.2x+0.2+2.1=0

We add all the numbers together, and all the variables

-0.1x+2.3=0

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

-0.1x=-2.3

x=-2.3/-0.1

x=22+0.1/0.1

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