Question

(31*550-x) *120=10200
17050-x=10200:120
17050-85
x=16965
(31*550-16965)*120=10200

Answer 1

Відповідь:(31*550-x)*120=10200

31*550 -х = 10200 : 120

17050 -х = 85

17050 -85 = х  

х = 16965