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Mathematics, 12.02.2020 00:39 bombbomb2157

Which is a simplified form of the expression 3a + 7 – a – 7?
A. 2a
B. 4a
C. 2a + 14
D. 4a – 14

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Which is a simplified form of the expression 3a + 7 – a – 7?
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C. 2a + 1...
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