8/9 х-3/8 х+11/18 х=-9/2

1/2 х-61/100=3/8 х-1 9/25

4/9 х+5/8 х-19/18 х=1/9

99/100-1 1/16 х=39/50-х

1

8/9x-3/8x+11/18x=-9/2 ОЗ 72

64x-27x+44x=-324

81x=-324

x=-324:81

x=-4

1/2 х-61/100=3/8 х-1 9/25 ОЗ 200

100x-126=75x-272

100x-75x=126-272

25x=-146

x=-146:25

x=-5/84

4/9 х+5/8 х-19/18 х=1/9 ОЗ 72

32 х+45-76 х=8

-44 х=8-45

-44 х=-37

х=37/44

99/100-1 1/16 х=39/50-х ОЗ 400

376-425 х=312-400 х

-425 х+400 х=312-376

-25 х=-64

х=-64: (-25)

х=2 б56