Answer:
1.4
Step-by-step explanation:
7/5 = 1.4
r-5r-6s+8s-15
-4r+2s-15
= 2s-4r-15
8x + 6) - (x + 4)
8x + 6 - (x + 4)
8x + 6 - x - 4
7x + 2