Respuesta :

zxian

Step-by-step explanation:

4) x=(z-y)/2

8) b=(d)/ac

9) x=(-z+4)/y

10) a=(c-3)b

4. (Z-y)/2 = x
8. D/(ac) = b
9. (4-z)/y = x
10. a = (c-3)b
RELAXING NOICE
Relax