Răspuns:
30+5•{32:8+5•[40-8•(200:5-72:x)]}=250
5•{32:8+5•[40-8•(200:5-72:x)]} = 220
32:8+5•[40-8•(200:5-72:x)] = 44
4+5•[40-8•(200:5-72:x)] = 44
5•[40-8•(200:5-72:x)] = 40
40-8•(200:5-72:x) = 8
-8•(200:5-72:x) = -32
200:5-72:x = 4
40-72:x=4
-72:x=-36
x = 2