Question

By cross multiplication solve the following x+y=a-b, ax-by=a^2 +b^2

Answer 1

Answer:

x=a and y=b

Step-by-step explanation:

In x+y=a+b; a1=1, b1=1, c1= -a+b

and in ax - by=a^2+b^2; a2=a, b2= -b, c2=-(a^2+b^2)