Mathematics for IGCSE & O level - Functions (Section 1 - No. 42) | ExamPlay

Mathematics for IGCSE & O level - Functions (Section 1 - No. 42)

If f(x) = 3x + 1, what is the value of x when f(x) = 10?

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解释

3x+1=10, 3x=9, x=3

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