Question

if (a^6 x a^6)^k = (a^3)^(k+5), solve for k

Answer 1

2nd line:

(a^12)^k = a^(3k+15)
a^(12k) = a^(3k+15)

12k = 3k+15
9k = 15
k = 15/9 = 5/3