Уравнение (31x550-X)x120=10200

Question

Уравнение
(31x550-X)x120=10200

Answer 1

31×550-х=10200:120
17050-х=85
х=17050-85
х=16965

Answer 2

(31•550-x)•120=10200
17050-x=10200:120
17050-x=85
х=17050-85
х=16965
ответ: х=16965