Question 807724
solve this equation.
ax-by=1
bx+ay=1
----------add the equations
ax + bx - by + ay = 2
ax + bx = by - ay + 2
x(a+b) = y(b-a) + 2
x = {{{(y(b-a)+2)/((a+b))}}}
and
ax + bx - by + ay = 2
ay - by = -ax - bx + 2
y(a-b) = x(-a-b) + 2
y = {{{(x(-a-b)+2)/((a-b))}}}