Respuesta :
Answer:
5 8
Step-by-step explanation:
Coefficient of x should be 5 so first ? should be 5 let the second ? = z
5×6-9×z=-42
30+42=9z
z=8
Answer:
5 8
Step-by-step explanation:
Coefficient of x should be 5 so first ? should be 5 let the second ? = z
5×6-9×z=-42
30+42=9z
z=8