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Factoring the term on the left:
You can cancel like-numbers if found on both numerator and denominator:
Factoring the term on the right:
You can cancel like-numbers if found on both numerator and denominator:
Combining:
You can cancel like-numbers if found on both numerator and denominator:
Factoring numerator:
You can cancel like-numbers if found on both numerator and denominator: