Minecotik3000 X = (52 +12) / 8
x = 8
___________________

8 * 8 - 12 = 52
Ответ: 8

alinakyberskaya Х*8–12=52
Х*8=52+12
Х*8=64
Х=64:8
Х=8
8*8–12=52
52=52