Пошаговое объяснение:
1) 5a - 3a = 2a ≤ 8
a ≤ 4
1 + 2 + 3 + 4 = 10
2) 4x + 3x = 7x ≤ 25
x ≤ 3 4/7
1 + 2 + 3 = 6
3) 14 < 2y + 5y ≤ 28
14 < 7y ≤ 28
2 < y ≤ 4
3 + 4 = 7
4) 3 ≤ 9y - 6y ≤ 12
3 ≤ 3y ≤ 12
1 ≤ y ≤ 4
Пошаговое объяснение:
1) 5a - 3a = 2a ≤ 8
a ≤ 4
1 + 2 + 3 + 4 = 10
2) 4x + 3x = 7x ≤ 25
x ≤ 3 4/7
1 + 2 + 3 = 6
3) 14 < 2y + 5y ≤ 28
14 < 7y ≤ 28
2 < y ≤ 4
3 + 4 = 7
4) 3 ≤ 9y - 6y ≤ 12
3 ≤ 3y ≤ 12
1 ≤ y ≤ 4
1 + 2 + 3 + 4 = 10