Question 17
Number BasesGiven that 23x + 101x = 130x, find x
- A.7
- B.6
- C.5
- D.4
Show the answer and explanation
Answer: D (4)
Explanation
(2x + 3) + (x² + 1) = x² + 3x, so 2x + 4 = 3x and x = 4.
Given that 23x + 101x = 130x, find x
Answer: D (4)
(2x + 3) + (x² + 1) = x² + 3x, so 2x + 4 = 3x and x = 4.