Cassidy had 2 pencils. She bought some more. Now she has 9 pencils. - 2 + a = 9, How many cookies are in a box if the box plus four more equals 24 cookies, where b stands for the number of cookies in the box? - b + 4 = 24, Three full boxes of cookies equal 60 cookies. - 3b = 60, 6 packages of pencils equal 48 pencils. - 48 = 6y, There are 64 erasers in a package. Some fell out and now there are 57 erasers. - 64 – r = 57, Margaret has to read for a certain time each night. She read for 15 minutes, now she only has to read 45 minutes longer. - 45 = z – 15, Harold has 72 cars. He put them in equal groups with 9 in each group. - 72 ÷ x = 9, Mrs. B. has some books. She put them into 3 equal piles of 5 books. - 5 = b ÷ 3,

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