Solve for x: 3x + 7 = 22
Pick an answer
Correct!
Not quite. The correct answer is highlighted.
Correct answer to question 18 (Mathematics Knowledge): 5
Method
Undo the addition first: 22 - 7 = 15. Then undo the multiplication: 15 / 3 = 5.
Updated: November 2026
Raise your AFQT scoreFree for iPhone and Android
