First off we let a = b.
a = b
Next We multiply both sides by a
a2 = ab
Next We can add a2 to both sides
2a2 = a2 + ab
Next We can subtract 2ab from both sides
2a2 - 2ab = a2 - ab
We can simplify this with factorisation
2 (a2 - ab) = a2 - ab
Dividing both sides by (a2 - ab)
2 = 1
Looks like the rubber band broke, but maths doesn't lie people!!!