Question

let x= y
multiply both side by x we get
x^2 = xy
subtract both side by y^2
x^2 - y^2 = xy- y^2
=> (x+y)(x-y) = y(x - y)
x-y is cancelled
x+y= y
x = y-y
x= 0
1×x =0
1=0 how???
tell where am I wrong?
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Answer 1

1×X=0

SINCE 1 CAN'T BE 0

THEREFORE X=0 .......

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