Answer:
y =8.7
Step-by-step explanation:
y + 8.5 = 17.2
Subtract 8.5 from each side
y +8.5-8.5 = 17.2 -8.5
8.7
combine the like terms
y = 17.2-8.5
y=8.7
verify
8.7+8.5=17.2
17.2=17.2
