4 years ago

12r - 18 = 13r + 18 please help

Mathematics

2 answers:

Tomtit [17]4 years ago

5 0

12r - 18 = 13r + 18
13r - 12r - 18 = 13r + 18 - 13r
-1r - 18 + 18 = 18 + 18
-r = 36
36/-1
r= -36

Ugo [173]4 years ago

3 0

I am assuming you want to find r. r = -36

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