Bianca, Axel and Leonardo

Question

Bianca, Axel and Leonardo sent total of 83 text messages over their cell phones during the weekend. Bianca sent 7 more messages than Axel. Leonardo sent 4 times as many Bianc. How many messages did they each sent?

Answer 1

x = number sent by Axel

x + 7 = number sent by Bianca

4(x + 7) = number sent by Leonardo

 

x + (x + 7) + 4(x + 7) = 83

 

6x + 35 = 83

 

x = 8

x + 7 = 15

4(x + 7) = 60

 

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