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4 votes
R/5-6=-1

A)
r = 1

B)
r = 5
C)
r = 10
D)
r = 25

1 Answer

7 votes
r/5=-1+6 ⇒r÷5 = 5 ⇒r = 5×5 ⇒r=25 :))) D) r=25 
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