Question 2
IndicesSolve for x if (21−x × 2x−1)/2x+2 = 82−3x
- A.1
- B.2
- C.4
- D.5
Show the answer and explanation
Answer: A (1)
Explanation
Left side: 2(1−x)+(x−1)−(x+2) = 2−x−2. Right side: 26−9x. So −x − 2 = 6 − 9x, 8x = 8, x = 1.
Solve for x if (21−x × 2x−1)/2x+2 = 82−3x
Answer: A (1)
Left side: 2(1−x)+(x−1)−(x+2) = 2−x−2. Right side: 26−9x. So −x − 2 = 6 − 9x, 8x = 8, x = 1.