Solve for x: 2x - 8 = 0.

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Sharpen your skills for the Praxis Middle School Mathematics Test. Prepare with a variety of questions, hints, and explanations. Get ready to ace your exam!

Multiple Choice

Solve for x: 2x - 8 = 0.

Explanation:
To solve this, you undo the subtraction and the multiplication that affect x. Start by adding 8 to both sides to isolate the term with x: 2x = 8. Then divide both sides by 2 to isolate x, giving x = 4. Checking the work, substitute back: 2(4) - 8 = 8 - 8 = 0, so it satisfies the equation. Only this value makes the left side zero, so x equals 4.

To solve this, you undo the subtraction and the multiplication that affect x. Start by adding 8 to both sides to isolate the term with x: 2x = 8. Then divide both sides by 2 to isolate x, giving x = 4. Checking the work, substitute back: 2(4) - 8 = 8 - 8 = 0, so it satisfies the equation. Only this value makes the left side zero, so x equals 4.

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