Solve for x: 3x + 7 = 22
- A. 3
- B. 5
- C. 7
- D. 9
Explanation
Subtract 7 from both sides: 3x = 15. Divide both sides by 3: x = 5. Substituting back gives 3(5) + 7 = 22, confirming the answer.
Explanation
Subtract 7 from both sides: 3x = 15. Divide both sides by 3: x = 5. Substituting back gives 3(5) + 7 = 22, confirming the answer.