O.3(r+2)=-0.1(-2r-4)

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Solution for O.3(r+2)=-0.1(-2r-4) equation: 



.3(O+2)=-0.1(-2O-4)

We move all terms to the left:

.3(O+2)-(-0.1(-2O-4))=0

We multiply parentheses

0.3O-(-0.1(-2O-4))+0.6=0



We calculate terms in parentheses: -(-0.1(-2O-4)), so:

-0.1(-2O-4)

We multiply parentheses

0.2O+0.4

Back to the equation:

-(0.2O+0.4)



We get rid of parentheses

0.3O-0.2O-0.4+0.6=0

We add all the numbers together, and all the variables

0.1O+0.2=0

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

0.1O=-0.2

O=-0.2/0.1

O=-2

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