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Mathematics 8 Online
OpenStudy (anonymous):

kenny and mike each begin with the same number of baseball cards. after mike gives kenny 12 cards, kenny has twice as many as mike. how many cards do they have all together? a. 36 b. 48 c. 60 d. 72 e. 84

OpenStudy (anonymous):

\[x+12=2(x-12)\] might do it

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