-(9/28)×((35/36)-x)-(x+(5/8))=-(9×7×5/7×4×9×4)+(9/28)x-x-(5/8)=-(5/16)-(5/8)+((9-28)/28)x=-(5+5×2)/16-(19/28)x=-(15/16)-(19/28)x.
-(2/23)×(69+y)+(-7+y)=-((2×23×3)/23)-(2/23)y-7+y=-6-(2/23)y-7+y=-13+(23/23)y-(2/23)y=-13+((23-2)/23)y=-13+(21/23)y=(21/23)y-13.