Solve the following system of equations by method of cross-multiplication: `(57)/(x+y)+6/(x-y)=5,\ \ \ (38)/(x+y)+(21)/(x-y)=9`

Solve the following system of equations by method of cross-multiplication: (57)/(x+y)+(6)/(x-y)=5,quad (38)/(x+y)+(21)/(x-y)=9

Solve the following system of equations by method of cross-multiplication: (x+y)/(x y)=2,\ \ \ (x-y)/(x y)=6

Solve the following system of equations by method of cross-multiplication: (x+y)/(xy)=2,quad (x-y)/(xy)=6

Solve the following system of equations by method of cross-multiplication: 2x-y=6,quad x-y=2

Solve the following system of equations by method of cross-multiplication: 2x-y=6,\ \ \ \ x-y=2

Solve the following system of equations by method of cross-multiplication: 5/(x+y)-2/(x-y)=-1,\ \ \ (15)/(x+y)+7/(x-y)=10 , where x!=0 and y!=0

Solve the following system of equations by method of cross-multiplication: (5)/(x+y)-(2)/(x-y)=-1,quad (15)/(x+y)+(7)/(x-y)=10 ,where x!=0 and y!=0

Solve the following system of equations by method of cross-multiplication: x+2y+1=0,quad 2x-3y-12=0

Solve the following system of equations by method of cross-multiplication: 2x+y=35,quad 3x+4y=65

Solve the following system of equations by method of cross-multiplication: x+a y=b ,\ \ \ \ a x-b y=c