5
algebra

If 6x523x+134>10\frac{6x-5}{2} - \frac{3x+13}{4} > 10, what is the solution?

A

x>3x > 3

B

x<3x < 3

C

x>7x > 7

D

x<7x < 7

Correct Answer: C

Choice C is the correct answer. Inequalities with multiple fractions require finding a common denominator.

  1. LCD is 4: Rewrite as 2(6x5)43x+134>10\frac{2(6x-5)}{4} - \frac{3x+13}{4} > 10
  2. Combine fractions: 12x103x134>10\frac{12x-10-3x-13}{4} > 10, giving 9x234>10\frac{9x-23}{4} > 10
  3. Multiply by 4: 9x23>409x - 23 > 40
  4. Add 23: 9x>639x > 63
  5. Divide by 9: x>7x > 7

?�� Strategic Tip: When working with multiple fractions, find the LCD (Least Common Denominator) to combine fractions efficiently.

Choice A is incorrect because it represents x>3x > 3, which comes from solving with incorrect arithmetic. Choice B is incorrect because it both uses the wrong value and reverses the inequality direction. Choice D is incorrect because while 7 is the correct boundary, the direction should be >>, not <<.