Question

PLEASE HELP!! PLEASE

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

Answer 1

I think a because Jane is twice older than Barbara ( 2xb ) and mikael is 7 years older than Jane which is -7