gachaalexforlife gachaalexforlife

14-01-2020
Mathematics

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Jenny says the two expressions 7a – 4 + 3a - 6 and 4a – 10 are
equivalent? Is she correct?

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scdavis018 scdavis018

14-01-2020

yes, substitute a=2.
14 - 4 + 6 - 6 = -2
8 - 10 = -2

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