Question

5 класс если что ПОМОГИТЕ БЫСТРЕЕ​

Answer 1

а) (128 - 12b) + (14b) - 18), если b = 3,4,5

1. (128 - 12 * 3) + (14 * 3 - 18) = (128 - 36) + (42 - 18) = 92 + 24 = 116
2. (128 - 12 * 4) + (14 * 4 - 18) = (128 - 48) + (56 - 18) = 80 + 38 = 118
3. (128 - 12 * 5) + (14 * 5 - 18 = (128 - 60) + (70 - 18) = 68 + 52 = 120

б) (30у - 25) - (20у + 10), если у = 4,8,10

1. (30 * 4 - 25) - (20 * 4 + 10) = (120 - 25) - (80 + 10) = 95 - 90 = 5
2. (30 * 8 - 25) - (20 * 8 + 10) = (240 - 25) - (160 + 10) = 215 - 170 = 45
3. (30 * 10 - 25) - (20 * 10 + 10) = (300 - 25) - (200 + 10) = 275 - 210 = 65