Algebra

$9^y = {3*6*27*4\over81*2}$

$9^y = {81 * 6 * 2 * 2\over81 * 2}$, cancel terms (81 and 2)

$9^y = {1 * 6 * 2 * 1\over1*1}$

$9^y = 12$

y is approximately 1.131