13/2/27-(X-1,2/9)=3,2/81
13/2/27-(X-6/5/9)=3,2/81
13/2/27-(X- 6/5/9)=16/5/81
13/54-( X - 6/5/9)=16/5/81
13/54-(X - 2/15) = 16/5/81
13/54- (X - 2/15)= 16/405
13/54-X + 2/15=16/405
101/270-X = 16/405
- X= 16/405-101/270
- X =- 271/810
X= 271/810
13/2/27-(X-1,2/9)=3,2/81
13/2/27-(X-6/5/9)=3,2/81
13/2/27-(X- 6/5/9)=16/5/81
13/54-( X - 6/5/9)=16/5/81
13/54-(X - 2/15) = 16/5/81
13/54- (X - 2/15)= 16/405
13/54-X + 2/15=16/405
101/270-X = 16/405
- X= 16/405-101/270
- X =- 271/810
X= 271/810