Answer:
a could equal anything.
Explanation:
Subtract a from both sides:
8+a-a+6=4a-a+14-3a
8+6=3a+14-3a
Simplify:
14=3a-3a+14
14=14
It doesn't matter what a is, the answer is still the same. Try it with 5, -5, 0, 327, you will get the same thing each time.