-2(1-5r)=9(r-1)

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Solution for -2(1-5r)=9(r-1) equation: 



-2(1-5r)=9(r-1)

We move all terms to the left:

-2(1-5r)-(9(r-1))=0

We add all the numbers together, and all the variables

-2(-5r+1)-(9(r-1))=0

We multiply parentheses

10r-(9(r-1))-2=0



We calculate terms in parentheses: -(9(r-1)), so:

9(r-1)

We multiply parentheses

9r-9

Back to the equation:

-(9r-9)



We get rid of parentheses

10r-9r+9-2=0

We add all the numbers together, and all the variables

r+7=0

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

r=-7

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