1. The problem statement, all variables and given/known data There are exactly 33 postage amounts that cannot be made up using these stamps, including 46 cents. What are the values of the remaining stamps? 2. Relevant equations stamp 1 = x stamp 2 = y Im assuming postage amounts range from 1 to 100 cents 3. The attempt at a solution ax+by=46 has a negative solution obviously. So either a or b < 0. I cannot get any farther than that.