- 4х + 9 · (8х - 9 - 4х) = - 6 - 5 · (2 - 5х +6)
- 4х + 72х - 81 - 36х = - 6 - 10 + 25х - 30
72х - 36х - 4х - 25х = 81 - 6 - 10 - 30
7х = 35
х = 35 : 7
х = 5
-------------------------------------------------------------------------
Проверка: - 20 + 9 · (40 - 9 - 20) = - 6 - 5 · (2 - 25 + 6)
- 20 + 9 · 11 = - 6 - 5 · (-17)
- 20 + 99 = - 6 + 85
79 = 79 - верно.
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
- 4х + 9 · (8х - 9 - 4х) = - 6 - 5 · (2 - 5х +6)
- 4х + 72х - 81 - 36х = - 6 - 10 + 25х - 30
72х - 36х - 4х - 25х = 81 - 6 - 10 - 30
7х = 35
х = 35 : 7
х = 5
-------------------------------------------------------------------------
Проверка: - 20 + 9 · (40 - 9 - 20) = - 6 - 5 · (2 - 25 + 6)
- 20 + 9 · 11 = - 6 - 5 · (-17)
- 20 + 99 = - 6 + 85
79 = 79 - верно.