2/3:(4/9X-4/9)+1/20=4/5

Question

2/3:(4/9X-4/9)+1/20=4/5

Answer 1

2/3:(4/9X-4/9)+1/20=4/5

2/3:(4/9X-4/9)=3/4

2/3*4/3=(4/9X-4/9)

8/9=4/9*(х-1)

х-1=2

х=3

Answer 2

4/9х-4/9=4-4х/9х
4-4х/9х*3/2=2-2х/3
2-2х/3+1/20= 43-40х/60
43-40х/60*5/4=(43-40х)*5=12
215-200х=12
-200х=-203
х=1.015