4
algebra

If 4x+2=2x+124x + 2 = 2x + 12, what is the value of xx?

A

2

B

5

C

7

D

10

Correct Answer: B

Choice Dhoice B is the correct answer.

  1. Subtract 2x: 2x+2=122x + 2 = 12
  2. Subtract 2: 2x=102x = 10
  3. Divide by 2: x=5x = 5
  4. Verify: 20+2=2220 + 2 = 22 and 10+12=2210 + 12 = 22 ✓

Choice Dhoice D is incorrect because calculation error.

Choice Dhoice A is incorrect because calculation error.

Choice Dhoice C is incorrect because calculation error.

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Linear Functions Set 20