Question

(3х-4):9+(5х-7):6=(4х+5):18

Answer 1

Домножим на 18.
2(3х-4)+3(5х-7)=4х+5
6х-8+15х-21=4х+5
6х+15х-4х=5+8+21
17х=34
х=2

Answer 2

=(6x-8):18+(15x-21):18-(4x+5):18
=(17x -34):18