9
algebra

Solve: 4x2=2x+84x - 2 = 2x + 8

A

5

B

10

C

2.5

D

3

Correct Answer: A

Choice Dhoice D is the correct answer.

  1. Subtract 2x: 2x2=82x - 2 = 8
  2. Add 2: 2x=102x = 10
  3. Divide by 2: x=5x = 5
  4. Verify: 202=1820 - 2 = 18 and 10+8=1810 + 8 = 18

Choice Dhoice C is incorrect because calculation error.

Choice Dhoice C is incorrect because calculation error.

Choice Dhoice B is incorrect because calculation error.