реши уравнение ( x -12)× 11 = 77 и 96÷(80÷x)=6

Question

реши уравнение ( x -12)× 11 = 77 и 96÷(80÷x)=6

Answer 1

Х-12=77:11
Х-12=7
Х=12+7
Х=19

80:х=96:6
80:х=16
Х=80:16
Х=5

Answer 2

1)
(х - 12) * 11 = 77
х - 12 = 77 : 11
х - 12 = 7
х = 7 + 12
х = 19
проверка:
(19 - 12) * 11 = 77
7 * 11 = 77
77 = 77

2)
96 : (80 : х) = 6
80 : х = 96 : 6
80 : х = 16
х = 80 : 16
х = 5
проверка:
96 : (80 : 5) = 6
96 : 16 = 6
6 = 6