the answer is 28
-4, -25xy=100x+y=-29Rearrange the 1st equation & substitute into the second:x+(100/x) = -29x*(x+(100/x))=29*x [multiply both sides by x to get rid of x in the denominator]x2+100 =...
7.5516 and 70.4484 (approx)
-10 and 8-10 * 8 = -80-10 + 8 = -2
Many possible combinations: (1,36), (2,18), (3,12), (4,9), (6,6) are the solutions using only positive integers.