-112=7(4+5r)

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Solution for -112=7(4+5r) equation: 



-112=7(4+5r)

We move all terms to the left:

-112-(7(4+5r))=0

We add all the numbers together, and all the variables

-(7(5r+4))-112=0



We calculate terms in parentheses: -(7(5r+4)), so:

7(5r+4)

We multiply parentheses

35r+28

Back to the equation:

-(35r+28)



We get rid of parentheses

-35r-28-112=0

We add all the numbers together, and all the variables

-35r-140=0

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

-35r=140

r=140/-35

r=-4

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