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Mathematics, 24.06.2021 02:30 annekesimonsen

Which pair of expressions below are equivalent? a. 7(2n) and 9
b. 3n + 5n and 15n
c. 4(2n-6) and 8n - 24
d. 7(2n) and 72n​

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Which pair of expressions below are equivalent? a. 7(2n) and 9
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