7
algebra

Solve: 2(x+4)+3(x−1)=252(x + 4) + 3(x - 1) = 25

A

6

B

5

C

3

D

4

Correct Answer: D

Choice Ahoice D is the correct answer.

  1. Distribute: 2x+8+3x−3=252x + 8 + 3x - 3 = 25
  2. Combine like terms: 5x+5=255x + 5 = 25
  3. Subtract 5: 5x=205x = 20
  4. Divide by 5: x=4x = 4
  5. Verify: 2(8)+3(3)=16+9=252(8) + 3(3) = 16 + 9 = 25 ✓

Choice Ahoice C 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 12