HaroonR.co.nr

1. Let a = b.

2. Multiply both sides by a.
a2 = ab

3. Subtract b2 from both sides.
a2 - b2 = ab - b2

4. Factor.
(a+b)(a-b) = b(a-b)

5. Divide both sides by (a-b).
(a+b) = b

6. Substitute a = b (from step 1)
b+b = b

7. Simplify.
2b = b

8. Divide both sides by b. 2=1