48=-8(3-r)

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Solution for 48=-8(3-r) equation: 



48=-8(3-r)

We move all terms to the left:

48-(-8(3-r))=0

We add all the numbers together, and all the variables

-(-8(-1r+3))+48=0



We calculate terms in parentheses: -(-8(-1r+3)), so:

-8(-1r+3)

We multiply parentheses

8r-24

Back to the equation:

-(8r-24)



We get rid of parentheses

-8r+24+48=0

We add all the numbers together, and all the variables

-8r+72=0

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

-8r=-72

r=-72/-8

r=+9

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