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22 March, 21:34

Which expressions are equal to 4 when x = 7 and y = 2? Choose all answers that are correct. A. x - y - 1 B. x - (6 : y) C. xy - 8 D. x + y - 4

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  1. 23 March, 00:39
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    A. 7-2-1=4 so that works B. 7 - (6/2) ... 7-3=4 so it works C. 7x2-8 ... 14-8=6 so it doesn't work D. 7+2-4=5 so it doesn't work, therefore the answers are A & B
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