(99-9х)*8+14=86
(99-9х)*8=86+14
(99-9х)*8=72
99-9х=72/8
99-9х=9
-9х=9-99
-9х=-90
х=10
(99-9*10)*8+14=86
(99-90)*8+14=86
9*8+14=86
72+14=86
86=86
Пошаговое объяснение:
10
(99 - 9х) * 8 = 86 - 14
(99 - 9х) * 8 = 72
99 - 9х = 72 : 8
99 - 9х = 9
9х = 99 - 9
9х = 90
х = 90 : 9
х = 10
(99-9х)*8+14=86
(99-9х)*8=86+14
(99-9х)*8=72
99-9х=72/8
99-9х=9
-9х=9-99
-9х=-90
х=10
(99-9*10)*8+14=86
(99-90)*8+14=86
9*8+14=86
72+14=86
86=86
Пошаговое объяснение:
10
Пошаговое объяснение:
(99 - 9х) * 8 = 86 - 14
(99 - 9х) * 8 = 72
99 - 9х = 72 : 8
99 - 9х = 9
9х = 99 - 9
9х = 90
х = 90 : 9
х = 10