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16a+5=21a (plz show work)
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16a+5=21a (plz show work)

User BenoitVasseur
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16a+5=21a\\ 5a=5\\ a=1
User Shishil Patel
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16a+5=21a\\\\21a=16a+5\ \ \ \ \ |subtract\ 16a\ from\ both\ sides\\\\5a=5\ \ \ \ |divide\ both\ sides\ by\ 5\\\\\boxed{\boxed{a=1}}
User SeanA
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