Question

What must be added to (3X + 5Y- 4Z +XYZ) to get 5X-8Y ?​

Answer 1

Answer:

Step-by-step explanation:

3x=4y=5z = k  

x= k/3 ,y= k/4, z= k/5  

x : y: z = k/3:k/4: k/5 = 1/3 : 1/4: 1/5  

x: y : z = 20 : 15 : 12