13^(5x - 1)· 17^(2x - 2) = 13^(3x + 1)
13^(5x - 1)· 17^(2x - 2): 13^(3x + 1) = 1
13^(5x - 1 -3x - 1)· 17^(2x - 2) = 1
13^(2x - 2)· 17^(2x - 2) = 1
(13·17)^(2x - 2) = 1
(13·17)^(2x - 2) = (13·17)^0
2x - 2 = 0
2x =2
x = 1
13^(5x - 1)· 17^(2x - 2) = 13^(3x + 1)
13^(5x - 1)· 17^(2x - 2): 13^(3x + 1) = 1
13^(5x - 1 -3x - 1)· 17^(2x - 2) = 1
13^(2x - 2)· 17^(2x - 2) = 1
(13·17)^(2x - 2) = 1
(13·17)^(2x - 2) = (13·17)^0
2x - 2 = 0
2x =2
x = 1