3x+8-4x=0.1(x-19)

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Solution for 3x+8-4x=0.1(x-19) equation: 



3x+8-4x=0.1(x-19)

We move all terms to the left:

3x+8-4x-(0.1(x-19))=0

We add all the numbers together, and all the variables

-1x-(0.1(x-19))+8=0



We calculate terms in parentheses: -(0.1(x-19)), so:

0.1(x-19)

We multiply parentheses

0.1x-1.9

Back to the equation:

-(0.1x-1.9)



We get rid of parentheses

-1x-0.1x+1.9+8=0

We add all the numbers together, and all the variables

-1.1x+9.9=0

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

-1.1x=-9.9

x=-9.9/-1.1

x=+9

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