Question

Прошу помогите дам 25баллов

Answer 1

А)
-4 (5 - 2m) + 3 (m - 4) = 6 (2 - m) - 5m
-20 + 8m + 3m - 12 = 12 - 6m - 5m
-32 + 11m = 12 - 11m
11m + 11m = 12 + 32
22m = 44
m = 44/22

m = 2

Б)
0,5 (2y - 1) - (0,5 - 0,2y) + 1 = 0

y - 0,5 - 0,5 + 0,2y + 1 = 0
1,2y + 1 = 0

1,2y = 0

y = 0

В)
x + 3/12 = 4/3

x + 1/4 = 4/3
x = 4/3 - 1/4

x = 13/12

x = 1 целая 1/12

x = 1,083