Задача Задача №3604897
А
А
Treat decimal comma as decimal point.
- 0,9 + 8,9 = 0.9 + 8.9 = 9.8
- 8x − x = 7x
So 9.8 = 7x → x = 9.8/7 = 1.4
Check: 7x = 7×1.4 = 9.8, matches LHS.
Answer: x = 1.4.
Treat decimal comma as decimal point.
So 9.8 = 7x → x = 9.8/7 = 1.4
Check: 7x = 7×1.4 = 9.8, matches LHS.
Answer: x = 1.4.