Let us say there are two natural numbers "L" and "R". We performed eight operations on these.........What is wrong here?

Question

Let us say there are two natural numbers "L" and "R".
We performed eight operations on these two numbers as

Step-1: L = R
Step-2: L x L = R x L
Step-3: L^2 - R^2 = LR - R^2
Step-4: (L + R)( L - R) = R(L - R)
Step-5: L + R = R
Step-6: R + R = R
Step-7: 2R = R
Step- 8: 2 = 1

What is wrong here?

Answer 1

What isn't wrong here !!! LOL
Even if we take L = R which is not true if they are 2 distinct natural numbers, at the 3rd step you have 0 = 0 form. From hereafter whatever you do you end up getting one absurd conclusion after another.
In step 4 (L - R) is 0, so it will be like (L + R)*(0)=R*(0)
In step 5 0 is cancelled on both sides which is meaningless, hence wrong.

Comments

what will be the right answer of this question?

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The question was to show if or where there are faults in the statements shown above. As answer I have shown the faults in the statements.