Question

Jennifer won tickets playing a game at the arcade. She gave her sister 18 of them. She has 47 left. How many tickets has she won before giving them away? Let n represent the number of tickets.

Answer 1

Let she got x tickets

ATQ

`\\ \sf\longmapsto x-18=47`

• Take 18 to right

`\\ \sf\longmapsto x=47+18`

`\\ \sf\longmapsto x=65`

Answer 2

if n = the number of tickets,
n - 18 = 47
(take 18 to the other side and inverse its operation)
n = 47 + 18
n = 65