Solve for x: 2x + 4 = 12.

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

Prepare for the Grade 6 FAST Mathematics Test. Study with comprehensive questions, solutions, and tips to maximize your performance and excel in your exam!

Multiple Choice

Solve for x: 2x + 4 = 12.

Explanation:
Solving a linear equation means undoing the operations on the variable to isolate it. Here, you start with 2x plus 4 equals 12. First undo the addition by subtracting 4 from both sides, giving 2x = 8. Then undo the multiplication by dividing both sides by 2, which yields x = 4. You can check by plugging in: 2(4) + 4 = 8 + 4 = 12, which matches the right side. So the value that makes the equation true is 4.

Solving a linear equation means undoing the operations on the variable to isolate it. Here, you start with 2x plus 4 equals 12. First undo the addition by subtracting 4 from both sides, giving 2x = 8. Then undo the multiplication by dividing both sides by 2, which yields x = 4. You can check by plugging in: 2(4) + 4 = 8 + 4 = 12, which matches the right side. So the value that makes the equation true is 4.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy