I can prove 1 = 2

$\boxed{\text{Step1}}$ Lets say **y = x**

$\boxed{\text{Step2}}$. Multiply by x **xy = $x^2$**

$\boxed{\text{Step3}}$ Subtract $y^2$ from each side **xy - $y^2$ = $x^2$ - $y^2$**

$\boxed{\text{Step4}}$ Factorize each side **y(x-y) = (x+y)(x-y)**

$\boxed{\text{Step5}}$ Divide both sides by (x-y) **y = x+y**

$\boxed{\text{Step6}}$ Since x = y **y = y + y**

$\boxed{\text{Step7}}$ And so... **y = 2y**

$\boxed{\text{Step8}}$Divide both the sides by y $\boxed{\text{1 = 2}}$

Which step is wrong?

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