Write a let statement Debra has $67 in loonies and toonies. If there are 45 coins in total, how many loonies are there

Answer 1

Info:
loonie - A $1 Canadian coin, showing a loon
toonie - A $2 Canadian coin

l+t = 45 ---> l = 45-t

1(45-t) + 2t = 67

45 - t + 2t = 67

continue

Answer 2

I dont get it