Solve for x: 3x + 7 = 22
Correct answer: A. 5
Subtract 7 from both sides: 3x = 15. Divide by 3: x = 5. Check by substituting: 3(5) + 7 = 22. Whatever you do to one side of an equation, do the same to the other side.
easy
Answer and explanation
The correct answer is A. 5
Subtract 7 from both sides: 3x = 15. Divide by 3: x = 5. Check by substituting: 3(5) + 7 = 22. Whatever you do to one side of an equation, do the same to the other side.
Topic: Algebra and Equations MCQs · Subject: Numerical Ability