Question 942112
 A boy has $84 and a girl has $12.
 How much does the boy need to give the girl in order for her to have the times the amount he has?
:
let a = amt of $ to make this happen
12 + a = 84 - a
a + a = 84 - 12
2a = 72
a = 72/2
a = $36 
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Confirm tjis
12 + 36 = $48
84 - 36 = $48