2(r-1)=0.2(2r+4)

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Solution for 2(r-1)=0.2(2r+4) equation: 



2(r-1)=0.2(2r+4)

We move all terms to the left:

2(r-1)-(0.2(2r+4))=0

We multiply parentheses

2r-(0.2(2r+4))-2=0



We calculate terms in parentheses: -(0.2(2r+4)), so:

0.2(2r+4)

We multiply parentheses

0.4r+0.8

Back to the equation:

-(0.4r+0.8)



We get rid of parentheses

2r-0.4r-0.8-2=0

We add all the numbers together, and all the variables

1.6r-2.8=0

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

1.6r=2.8

r=2.8/1.6

r=1+1/1.33333333333

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