Solve for x: 3x + 7 = 22.

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Study for the Jamaica Training Aid Test. Utilize flashcards and multiple-choice questions, each with hints and explanations. Prepare thoroughly for your exam!

Multiple Choice

Solve for x: 3x + 7 = 22.

Explanation:
To solve for x, we isolate the variable by undoing the operations on it. Start with 3x + 7 = 22. Subtract 7 from both sides to remove the constant term: 3x = 15. Then divide both sides by 3 to isolate x: x = 5. A quick check shows 3(5) + 7 = 15 + 7 = 22, which matches the right side. So x equals 5. (Other numbers wouldn’t balance the equation after these two steps.)

To solve for x, we isolate the variable by undoing the operations on it. Start with 3x + 7 = 22. Subtract 7 from both sides to remove the constant term: 3x = 15. Then divide both sides by 3 to isolate x: x = 5. A quick check shows 3(5) + 7 = 15 + 7 = 22, which matches the right side. So x equals 5. (Other numbers wouldn’t balance the equation after these two steps.)

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