ISEE Lower Level Quantitative : How to find the solution to an equation

Study concepts, example questions & explanations for ISEE Lower Level Quantitative

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Example Questions

Example Question #71 : How To Find The Solution To An Equation

Ten less than one-half of a number is sixty. What is the number?

Possible Answers:

Correct answer:

Explanation:

If we let  be the number, then "one-half a number" can be written as

"Ten less than one-half of a number" can be written as

Set this equal to sixty and solve:

By the addition property of equality:

By the multiplication property of equality:

 

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