Solve: `x/a+y/b=2,\ \ \ \ a x-b y=a^2-b^2`

Solve the following system of equations by method of cross-multiplication: x/a+y/b=2,\ \ \ \ a x-b y=a^2-b^2

Solve the following system of equations by method of cross-multiplication: x/a=y/b ,\ \ \ \ \ a x+b y=a^2+b^2

Solve the following system of equations: x+y=a+b ,\ \ \ \ a x-b y=a^2-b^2

Solve: a x+b y=a-b ,\ \ \ \ b x-a y=a+b

x+y=a+b , a x-b y=a^2-b^2

Solve: (x)/(a)+(y)/(b)=2,quad ax-by=a^(2)-b^(2)

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

x/a-y/b=0 , a x+b y=a^2+b^2

Solve: x+y=a+b ; a x-b y=a^2-b^2

Solve the following system of equations by using the method of substitution: (2x)/a+y/b=2,\ \ \ \ x/a-y/b=4