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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 6 - No. 19)

If a = 2 and b = 3, what is the value of 2a + b?
5
7
9
12

Объяснение

Substitute a=2 and b=3 into the expression: 2(2) + 3 = 4 + 3 = 7

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