High School Placement Test (HSPT) Practice Test

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Study for the High School Placement Test with our HSPT quiz. Revise with flashcards and multiple choice questions, each offering hints and explanations. Prepare confidently for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

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

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.