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PLEASE HELP PLEASE!!! PLEASE SHOW WORK
Jane is twice as old as Barbara. Michael is 7 years older than Jane. If Mikael is 21, which equation could be used to find Barbara's age (b)

A. 2b-7=21 B. 2b+7=21 C. b/2-7=21 D.b/2+7=21

Sagot :

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