Question

(12M-5M)×4=252 (4n+3n)×11=154 45÷(4m-m)=3

Answer 1

Решение и ответ:

(12M-5M)·4 = 252

12M-5M = 252 ÷ 4

7M = 63

M = 63÷7

M = 9

(4n+3n)·11 = 154

4n+3n = 154÷11

7n = 14

n = 14÷7

n = 2

45÷(4m-m) = 3

4m-m = 45÷3

3m = 15

m = 15÷3

m = 5