(9·x - 7)/(3·x - 2) - (4·x - 5)/(2·x - 3) = 1
(9·x - 7)·(2·x - 3) - (4·x - 5)·(3·x - 2) = (2·x - 3)·(3·x - 2)
(18·x^2 - 41·x + 21) - (12·x^2 - 23·x + 10) = 6·x^2 - 13·x + 6
6·x^2 - 18·x + 11 = 6·x^2 - 13·x + 6
5 = 5·x
x = 1
Probe
(9·1 - 7)/(3·1 - 2) - (4·1 - 5)/(2·1 - 3) = 1
2/1 - (-1)/(-1) = 1
2 - 1 = 1
stimmt