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Mathematics, 09.12.2020 18:30 carog24

Which expressions' values do NOT change when the grouping symbols are removed? Choose all the correct expressions. A. 4+(12-4)
B. 8X (3+4)
C. 3X (3x7)
D. 45 – (21 =7)
E. (12 + 6) - 5
F. 81 - (9+4)

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