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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 3 - No. 34)

Simplify: 8a - 5b + 2a + 7b
10a + 2b
6a - 2b
10a - 2b
6a + 12b

설명

8a + 2a - 5b + 7b = 10a + 2b

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