Answer:
12, 2 and 10
Step-by-step explanation:
(1)
b - 4 = 8 ( add 4 to both sides )
b = 12
(2)
y + 7 = 9 ( subtract 7 from both sides )
y = 2
(3)
16 = n + 6 ( subtract 6 from both sides )
10 = n
