Which bit is wrong?

Which bit is wrong?

Can't simplify by 0

Going from the penultimate line to the final line.

2*0 = 0

Simplifying this to 2 = 1 requires dividing by zero, but division is not defined when the second input is zero.

Oh!
Thanks buddy,

hahahahahhaha

This thread was not worth bumping. The polite sage is still a thing.

Dude
2(a-b)=a-b
2=((a/b)^-1)(a-b).
is not 2=a-b/a-b
Go back to basic Algebra

Replace a and b with x and see how retarded it looks.

Op, what is a minus a? Is it 0? Yes?

Great. Kill yourself.

Even I explained it to you, you wouldn't understand. Brainlet