High School Placement Test (HSPT) Practice Test

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Prepare for the High School Placement Test (HSPT) with our quiz. Utilize flashcards and multiple choice questions, each with hints and explanations. Set yourself up for success on test day!

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If x + 3 = 10, what is the value of x?

  1. 7

  2. 10

  3. 6

  4. 3

The correct answer is: 7

To find the value of \( x \) in the equation \( x + 3 = 10 \), we need to isolate \( x \) on one side of the equation. To do this, we can subtract 3 from both sides: \[ x + 3 - 3 = 10 - 3 \] This simplifies to: \[ x = 7 \] Thus, the value of \( x \) is 7. This solution is correct because it clearly shows the process of isolating \( x \) by performing the same operation on both sides of the equation, which is a fundamental principle in solving equations.