Mathematics for IGCSE & O level - Algebraic Manipulation (Section 5 - No. 49)

What is 3a + 2b - a + b equal to?

2a + 3b

4a + 3b

2a + b

4a + b

Vysvetlenie

Combining like terms (3a - a) + (2b + b) = 2a + 3b

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