Question

X+y=a+b and ax-by =a square -b square find x and y

Answer 1

X+y=a+b_________(1)
Ax-by=a^2-b^2________(2)

(1)×b=> xb+yb=ab+b^2

(2)×1=> ax-yb=a^2-b^2
_____(+)__(+)__(+)___(+)______
xb+ax=ab+a^2
_________________________
x(a+b)=a(a+b)
x(a+b) /(a+b) = a
x=a____(ans.)

X+Y=A+B
a+y=a+b
a+y-a=b
b=y______(ans.)