" 20.Solve: "(10)/(x+y)+(2)/(x-y)=4;(15)/(x+y)-(5)/(x-y)=-2

Solve the following pairs of equations by reducing them to a pair of linear equations : (10)/(x+y)+(2)/(x-y)=4 (15)/(x+y)-(5)/(x-y)=-2

Solve the following pairs of equations by reducing them to a pair of linear equations: (10)/(x+y)+(2)/(x-y)=4 (15)/(x+y)-(5)/(x-y)= -2

Solve the following system of equations: (10)/(x+y)+(2)/(x-y)=4,quad (15)/(x+y)-(9)/(x-y)=-2

Solve each of the following pairs of equations by reducing them to a pair of linear equations. (10)/(x+y)+(2)/(x-y)=4 and (15)/(x+y)-(5)/(x-y)=-2

Solve the following simultaneous equations. (10)/(x + y) + (2)/(x -y) = 4 , (15)/(x + y) - (5)/(x - y) = - 2

Solve the following pairs of equations by reducng them to a pair of linear equations. : (10)/(x+y)+(2)/(x-4)=4 and (15)/(x+y)+(5)/(x-y)=-2

( Solve: )/(x+y)-(2)/(x-y)=-1,quad (15)/(x+y)+(7)/(x-y)=10 where x+y!=0 and x-y!=0