91+48:(11-b)=995класс

Question

91+48:(11-b)=99







5класс

Answer 1

91+48:(11-b)=99
48:(11-b)=99-91
48:(11-b)=8
11-b=48:8
11-b=6
b=11-6
b=5

Answer 2

48:(11-в) = 99-91
48:(11-в) = 8
11-в = 48:8
11-в=6
в=11-6
в=5
ответ:5