-1+5r=2(5+8r)

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Solution for -1+5r=2(5+8r) equation: 



-1+5r=2(5+8r)

We move all terms to the left:

-1+5r-(2(5+8r))=0

We add all the numbers together, and all the variables

5r-(2(8r+5))-1=0



We calculate terms in parentheses: -(2(8r+5)), so:

2(8r+5)

We multiply parentheses

16r+10

Back to the equation:

-(16r+10)



We get rid of parentheses

5r-16r-10-1=0

We add all the numbers together, and all the variables

-11r-11=0

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

-11r=11

r=11/-11

r=-1

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