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19-01-2018
Mathematics

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12r - 18 = 13r + 18 please help

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alitakat02 alitakat02

19-01-2018

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

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19-01-2018

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

Answer Link

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