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## Answers

Multiply both sides by a axa=axb

a²=ab

Subtract both sides by b² a²-b²=ab-b²

Factor (a+b)(a-b)=b(a-b)

Divide both side by

**a-b**(a+b)(a-b)/

**a-b**=b(a-b)/a-b

a+b=b

Since a=b ; then, b+b=b

2b=b

Divide both sides by b 2b/b=b/b

2=1

The error in this one is the a-b because base on the proof above ; a=b

a-b is like 1-1 and it gives you 0