2/3x+4/9x=3,2

5/12x-4/15x=0.51

x-0,2=8/15 помогите

6/9 х+4/9 х=3,2

10/9 х=3,2

10/9 х=3 2/10

10/9 х=3 1/5

10/9 х=16/5

х=16/5:10/9

х=16/5*9/10

х=72/25

х=2 22/25

25/60 х-16/60 х=0,51

9/60 х=0,51

3/20 х=0,51

3/20 х=51/100

х=51/100:3/20

х=51/100*20/3

х=17/5

х=3 2/5

х=8/15+0,2

х=8/15+2/10

х=8/15+1/5

х=8/15+3/15

х=11/15

2/3x+4/9x=3,2

6/9 х+4/9 х=3.2

10/9 х=32/10

х=32/10:10/9

х=32/10*9/10

х=144/50

х=2 22/25

5/12x-4/15x=0.51

25/60 х-16/60 х=0.51

9/60 х=51/100

х=51/100:9/60

х=51/100*60/9

х=51/15

х=1 1/50

x-0,2=8/15

х=8/15+1/5

х=8/15+3/15

х=11/15