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Mathematics, 19.10.2019 21:00 kimlyn58p0wyn0

Crystal bought b boxes of cookies to bring to a party. each box contains 18 cookies. she decides to keep two boxes for herself. she brings 90 cookies to the party. which equation can be used to find the number of b boxes crystal bought?
a) 2b βˆ’ 18 = 90
b) 18b βˆ’ 2 = 90
c) 18b βˆ’ 36 = 90
d) 36 βˆ’ 18b = 90

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