1)(2.4x + (0.6 + x) + x) / 3 = 2.4
2.4x + (0.6 + x) + x = 2.4 * 3
2.4x + 0.6 + x + x = 7.2
4.4x + 0.6 = 7.2
4.4x = 7.2 - 0.6 = 6.6
x = 6.6 / 4.4 = 1.5 - третье число
1.5 * 2.4 = 3.6 - первое число
1.5 + 0.6 = 2.1 - второе число
2) (0.8 + x + x + 3.2x) / 3 = 4.6
0.8 + x + x + 3.2x = 4.6 * 3 = 13.8
5.2x + 0.8 = 13.8
5.2x = 13.8 - 0.8 = 13
x = 13/5.2 = 2.5 - первое число
2.5 + 0.8 = 3.3 - второе число
2.5 * 3.2 = 8 - третье число