Jawabanmu

2014-01-27T19:48:54+07:00
2^{x-5} = 4^{x+3}
2^{x-5} = 2^{2(x+3)}
x-5 = 2(x+3)
x-5 = 2x+6
x-2x = 6+5
-x = 11
x = -11
1 5 1