5
algebra

Solve: 2x+25=7x52x + 25 = 7x - 5

A

6

B

20

C

4

D

30

Correct Answer: A

Choice Bhoice C is the correct answer.

  1. Subtract 2x: 25=5x525 = 5x - 5
  2. Add 5: 30=5x30 = 5x
  3. Divide by 5: 6=x6 = x
  4. Verify: 2(6)+25=372(6) + 25 = 37 and 7(6)5=377(6) - 5 = 37

Choice Bhoice D is incorrect because calculation error.

Choice Bhoice D is incorrect because calculation error.

Choice Bhoice C is incorrect because calculation error.