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sveticcg [70]
3 years ago
15

12r - 18 = 13r + 18 please help

Mathematics
2 answers:
Tomtit [17]3 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]3 years ago
3 0
I am assuming you want to find r. r = -36
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