jika diketahui(-3/4)pangkat -8=(1 7/9)pangkat y, maka nilai y adalah?

(-3/4)^(-8) = (1 7/9)^y
(-4/3)^8 = (16/9)^y
(-4/3)^8 = ((4/3)^2)^y
(4/3)^8 = (4/3)^2y
2y = 8
y = 8/2
y = 4