Two equations #1

42 x 138 = 5796
12 x 483 = 5796

Two equations #2

54 x 297 = 16038
27 x 594 = 16038

Two equations #3

14 x 82 = 1148
41 x 28 = 1148

Two equations #4

46 x 96 = 4416
64 x 69 = 4416