Answer:
-8/81
Step-by-step explanation:
4+1/2=8/9k, 4+1/2 also equals 8/2+1/2 which is 9/2
(9k)9/2=-8/9k(9k), multiply each side by 9k
81k/2=-8
(2)81k/2=-8(2), multiply each side by two
81k=-8
81k/81=-8/81, divide each side by 81
k=-8/81
