x/a + a = x/b + b হলে, x এর মান কত?

x/a + a = x/b + b
or, x/a – x/b = b – a
or, x (1/a – 1/b) = b – a
or, x = (b – a)/(1/a – 1/b)
or, x = (b – a)/ {(b – a)/ab}
or, x = (b – a) × {ab/(b-a)}
or, x = ab