Respuesta :

1. d = 32
2. z = 5
3. x = 7
Explanation:
To find d- 5 * d and 8 * 20
5d = 160
(Divide by 5)
d = 32
To find z- 14 * z and 7 * 10
14z = 70
(Divide by 14)
z = 5
To find x- 24 * x and 21 * 8
24x = 168
(Divide by 24)
x = 7