Question

99 - 36 : 6 : 2 + 5 x z = 10 x 10 + 6 x 6

Answer 1

99-6:2+5z=100+36 99-3+5z=136 96+5z=136 |-96 5z=40 z=40:5 z=8

Answer 2

99-3+5xz=100+36 96+5xz=136 5xz=136-96 5xz=40 xz=8=>x,z apartin {(1,8);(2,4)}