Solve 4x + 3 = 19; what is x?

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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

Solve 4x + 3 = 19; what is x?

Explanation:
Solving a linear equation by isolating the variable. You undo the operations affecting x to get it alone. Start with 4x + 3 = 19. Subtract 3 from both sides to remove the constant term: 4x = 16. Then divide both sides by 4 to isolate x: x = 4. Check: 4(4) + 3 = 16 + 3 = 19, which matches the right side. So the value of x is 4.

Solving a linear equation by isolating the variable. You undo the operations affecting x to get it alone.

Start with 4x + 3 = 19. Subtract 3 from both sides to remove the constant term: 4x = 16. Then divide both sides by 4 to isolate x: x = 4.

Check: 4(4) + 3 = 16 + 3 = 19, which matches the right side. So the value of x is 4.

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