If (x - 1)/3 = k and k = 3, what is the value of x?
A4
B9
C10
D2
Answer & Solution
Correct answer: C. 10
Substitute k = 3 into (x - 1)/3 = k giving (x - 1)/3 = 3. Multiply by 3: x - 1 = 9. Add 1: x = 10.
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