-91=5(2r+1)+6r

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Solution for -91=5(2r+1)+6r equation: 



-91=5(2r+1)+6r

We move all terms to the left:

-91-(5(2r+1)+6r)=0



We calculate terms in parentheses: -(5(2r+1)+6r), so:

5(2r+1)+6r

We add all the numbers together, and all the variables

6r+5(2r+1)

We multiply parentheses

6r+10r+5

We add all the numbers together, and all the variables

16r+5

Back to the equation:

-(16r+5)



We get rid of parentheses

-16r-5-91=0

We add all the numbers together, and all the variables

-16r-96=0

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

-16r=96

r=96/-16

r=-6

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