Step-by-step explanation:
To find the value of y, we can rearrange the equation qc - qby + y = 1 + c:
y - qby + qc = 1 + c
Now, let's isolate y:
y(1 - qb) = 1 + c - qc
Divide both sides by (1 - qb):
y = (1 + c - qc) / (1 - qb)
This is the value of y.
