48=4(4+2r)

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Solution for 48=4(4+2r) equation: 



48=4(4+2r)

We move all terms to the left:

48-(4(4+2r))=0

We add all the numbers together, and all the variables

-(4(2r+4))+48=0



We calculate terms in parentheses: -(4(2r+4)), so:

4(2r+4)

We multiply parentheses

8r+16

Back to the equation:

-(8r+16)



We get rid of parentheses

-8r-16+48=0

We add all the numbers together, and all the variables

-8r+32=0

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

-8r=-32

r=-32/-8

r=+4

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