SeamusN2004 SeamusN2004

27-03-2015
Mathematics

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(d -10) + (d ÷ 3) for d = 21. explain

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redrose123 redrose123

27-03-2015

Substitute the number 21 for all the letter d's:

(21-10) + (21/3) = ?

11 + 7 = 18

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