9=2(r+2)+3

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Solution for 9=2(r+2)+3 equation: 



9=2(r+2)+3

We move all terms to the left:

9-(2(r+2)+3)=0



We calculate terms in parentheses: -(2(r+2)+3), so:

2(r+2)+3

We multiply parentheses

2r+4+3

We add all the numbers together, and all the variables

2r+7

Back to the equation:

-(2r+7)



We get rid of parentheses

-2r-7+9=0

We add all the numbers together, and all the variables

-2r+2=0

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

-2r=-2

r=-2/-2

r=1

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