-1,3-x=-2 1/2 x+5 3/7 = -1 1/3 x+ (- 11 1/3 ) = 2 4/5

-1 3/10 -x= -2 5/10 -2 5/10- (-1 3/10)=x -1 2/10=x x+ 5 3/7= -1 1/3 x+ 5 9/21=-1 7/21 x= -1 7/21- 5 9/21 x= -6 16/21 x+ (- 11 1/3 ) = 2 4/5 x- 11 5/15= 2 12/15 x= 2 12/15+ 11 5/15 x= 13 17/15 x= 14 2/15

-1,3-x=-2 1/2 x+5 3/7 = -1 1/3 x+ (- 11 1/3 ) = 2 4/5 a -1 i 3/10 -x= -2 i 5/10 x = -1 i 3/10 + 2 i 5/10 x = 1 i 2/10 b x+5 3/7 = -1 1/3 x= -1 1/3 - 5 3/7 x = -1 i 7/21 - 5 i 9/21 x = -6 i 16/21 c x+ (- 11 1/3 ) = 2 4/5 x= 2 i 4/5 + 11 i 1/3 x = 2 i 12/15 + 11 5/15 x = 14 i 2/15