4
algebra

Solve: 23x+5>12x+6\frac{2}{3}x + 5 > \frac{1}{2}x + 6

A

x>6x > 6

B

x<6x < 6

C

x>1x > 1

D

x<1x < 1

Correct Answer: A

Choice A is the correct answer. Use the LCD to clear fractions.

  1. LCD of 3 and 2 is 6: Multiply all terms by 6.
  2. Multiply: 6(23x)+6(5)>6(12x)+6(6)6(\frac{2}{3}x) + 6(5) > 6(\frac{1}{2}x) + 6(6)
  3. Simplify: 4x+30>3x+364x + 30 > 3x + 36
  4. Subtract 3x: x+30>36x + 30 > 36
  5. Subtract 30: x>6x > 6

?�� Strategic Tip: Clearing fractions makes the algebra much simpler and less prone to arithmetic errors.

Choice B is incorrect because it reverses the inequality direction. Choice C is incorrect because it might result from not multiplying the constants by 6. Choice D is incorrect because it combines wrong value and wrong direction.