What is the solution to the equation 9x = 72?

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Study for the GMAS 6th Grade Mathematics Test. Prepare with flashcards and multiple choice questions that feature hints and explanations. Equip yourself for success!

Multiple Choice

What is the solution to the equation 9x = 72?

Explanation:
When solving a simple equation like 9x = 72, you undo the multiplication by 9 on x. Divide both sides by 9 to isolate x. 72 ÷ 9 equals 8, so x is 8. You can check by multiplying back: 9 × 8 = 72, which matches the right side. If you tried the other values, you’d get 9 × 6 = 54, 9 × 9 = 81, or 9 × 12 = 108, none of which equal 72. So the solution is 8.

When solving a simple equation like 9x = 72, you undo the multiplication by 9 on x. Divide both sides by 9 to isolate x. 72 ÷ 9 equals 8, so x is 8. You can check by multiplying back: 9 × 8 = 72, which matches the right side. If you tried the other values, you’d get 9 × 6 = 54, 9 × 9 = 81, or 9 × 12 = 108, none of which equal 72. So the solution is 8.

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