The sum of 6 and one-third of x is one more than twice x, find
MATHEMATICS
WAEC 2010
The sum of 6 and one-third of x is one more than twice x, find x
- A. x = 7
- B. x = 5
- C. x = 3
- D. x = 2
Correct Answer: C. x = 3
Explanation
6 = \(\frac{1}{3}x\) = 1 + 2x
6 = 1 = \(\frac{2x}{1} - \frac{x}{3}\)
5 = \(\frac{6x - x}{3} = \frac{5x}{3}\)
5 = \(\frac{5x}{3}\)
3 x 5 = 5x
15 = 5x
x = \(\frac{15}{5}\)
= 3
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