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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 7 - No. 9)
Simplify the expression: 4a + 2b - a + 3b.
3a + 5b
5a + 5b
3a - 5b
5a - 5b
解释
Combining like terms: (4a - a) + (2b + 3b) = 3a + 5b.
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