92=-4(4r-5)

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Solution for 92=-4(4r-5) equation: 



92=-4(4r-5)

We move all terms to the left:

92-(-4(4r-5))=0



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

-4(4r-5)

We multiply parentheses

-16r+20

Back to the equation:

-(-16r+20)



We get rid of parentheses

16r-20+92=0

We add all the numbers together, and all the variables

16r+72=0

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

16r=-72

r=-72/16

r=-4+1/2

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