see attached picture for solutions:
If I'm doing this correctly, you would need to multiply everything inside the parenthesis by 8. So it would be 8x-24y·8x+24y. I'm sorry if that's not right, but that is my interpretation of the problem. Hope I was of some assistance :)
Answer:
29
Step-by-step explanation:
7(8)/4+5(3)
56/4+15
14+15
29