Solve: x+y=a+b and ax-by = a^2-b^2
x+y=a+b –(i)
ax-by = a2-b2 –(ii)
Multiplying qequation (i) by b we get,
bx+by = ab+b2 — (iii)
Now adding equation (ii) and (iii) we get,
ax-by+bx+by =a2-b2 +ab+b2
⟹ x(a+b) = a(a+b)
⟹ x = a
Substituting the value of x in equation (i) we get,
a+y= a+b
⟹ y=b
Therefore Required Solutions are x = a and y =b.