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

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



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

We move all terms to the left:

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

We multiply parentheses

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



We calculate terms in parentheses: -(4(r-1)+4), so:

4(r-1)+4

We multiply parentheses

4r-4+4

We add all the numbers together, and all the variables

4r

Back to the equation:

-(4r)



We add all the numbers together, and all the variables

-2r+4=0

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

-2r=-4

r=-4/-2

r=+2

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