Please solve this question for the correct way

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

What is the solution of the systems of equations? y=2/3x+3 x=-2

Ineed i been stuck on this question since yesterday