Answer:

Explanation:
To solve the equation
for x, we can follow these steps:
Combine the x terms on the left-hand side of the equation:
(5-k)x - 4 = y
Add 4 on both sides
(5-k)x - 4 +4 = y +4
(5-k)x = y +4
Isolate the x term by dividing both sides of the equation by (5-k):

So, the solution for x is:

Note: If k=5, then the denominator of the solution is zero, and the solution is undefined.