-10(1+10r)=11(-r+7)+2

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Solution for -10(1+10r)=11(-r+7)+2 equation: 



-10(1+10r)=11(-r+7)+2

We move all terms to the left:

-10(1+10r)-(11(-r+7)+2)=0

We add all the numbers together, and all the variables

-10(10r+1)-(11(-1r+7)+2)=0

We multiply parentheses

-100r-(11(-1r+7)+2)-10=0



We calculate terms in parentheses: -(11(-1r+7)+2), so:

11(-1r+7)+2

We multiply parentheses

-11r+77+2

We add all the numbers together, and all the variables

-11r+79

Back to the equation:

-(-11r+79)



We get rid of parentheses

-100r+11r-79-10=0

We add all the numbers together, and all the variables

-89r-89=0

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

-89r=89

r=89/-89

r=-1

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