Solve for x: 3x - 4 = 11.

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $24.99Unlock all

Study for the 7th Grade Math Test. Prepare with quizzes, flashcards, and detailed explanations for each question. Stay ready for your exam!

Multiple Choice

Solve for x: 3x - 4 = 11.

Explanation:
Solving for the variable here means undoing the operations on x to get x by itself. Start with 3x − 4 = 11. Add 4 to both sides to cancel the minus 4: 3x = 15. Then divide both sides by 3 to undo the multiplication: x = 5. You can check by plugging in 5: 3(5) − 4 = 15 − 4 = 11, which matches. Other numbers don’t fit because they don’t produce 11 when put into 3x − 4. The value that works is x = 5.

Solving for the variable here means undoing the operations on x to get x by itself. Start with 3x − 4 = 11. Add 4 to both sides to cancel the minus 4: 3x = 15. Then divide both sides by 3 to undo the multiplication: x = 5. You can check by plugging in 5: 3(5) − 4 = 15 − 4 = 11, which matches. Other numbers don’t fit because they don’t produce 11 when put into 3x − 4. The value that works is x = 5.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy