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16 April, 10:30

Determine if the expressions are equivalent.

12. 7+7x; 7 (x+1/7)

13. 2.5 (3+x); 2.5+7.5

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  1. 16 April, 12:51
    0
    12 is not because the second terms would be 7x + 1 and not 7x + 7.

    and 13 is not equivalent either
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