7. Diane flew home from vacation with a heavy bag. With the first airline she 1 point
 flew, Diane had to pay $14 to check her bag, plus $26 for every kilogram
 that her bag was over the weight limit. The next flight was with another
 airline that had the same weight limit. Diane had to pay $9 per kilogram
 that her bag was over the weight limit, in addition to the checked bag fee
 of $31. By coincidence, the fees ended up being the same with both
 airlines. Write a system of linear equations to represent the situation. *
 Your answer