2
algebra

If 23x−4=6\frac{2}{3}x - 4 = 6, what is the value of xx?

A

6.66

B

15

C

10

D

3

Correct Answer: B

Choice Ahoice C is the correct answer.

  1. Add 4: 23x=10\frac{2}{3}x = 10
  2. Multiply by 3: 2x=302x = 30
  3. Divide by 2: x=15x = 15
  4. Verify: 23(15)−4=10−4=6\frac{2}{3}(15) - 4 = 10 - 4 = 6 ✓

Choice Ahoice D is incorrect because calculation error.

Choice Ahoice D is incorrect because calculation error.

Choice Ahoice C is incorrect because calculation error.

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Linear Functions Set 21