((3r+2)+2r)+((3r+2)+2r)=84

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Solution for ((3r+2)+2r)+((3r+2)+2r)=84 equation: 



((3r+2)+2r)+((3r+2)+2r)=84

We move all terms to the left:

((3r+2)+2r)+((3r+2)+2r)-(84)=0



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

(3r+2)+2r

We add all the numbers together, and all the variables

2r+(3r+2)

We get rid of parentheses

2r+3r+2

We add all the numbers together, and all the variables

5r+2

Back to the equation:

+(5r+2)





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

(3r+2)+2r

We add all the numbers together, and all the variables

2r+(3r+2)

We get rid of parentheses

2r+3r+2

We add all the numbers together, and all the variables

5r+2

Back to the equation:

+(5r+2)



We get rid of parentheses

5r+5r+2+2-84=0

We add all the numbers together, and all the variables

10r-80=0

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

10r=80

r=80/10

r=8

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