ISEE Lower Level Math : Equations

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

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Example Questions

Example Question #101 : Equations

Fill in the blank of this equation.

Possible Answers:

Correct answer:

Explanation:

To fill in the blank, we need to think about what number will make this equation true.  So,

What number plus 10 will give us 19?  We know that when you take 9 and add 10, you will get 19.  So,

Example Question #102 : Algebraic Concepts

Solve:

Possible Answers:

Correct answer:

Explanation:

To solve, use algebra.  Your goal is to isolate the variable, and remember that you can do anything to the equation as long as you do it to both sides:

Example Question #103 : Algebraic Concepts

Solve:

Possible Answers:

Correct answer:

Explanation:

To solve, use algebra.  Your goal is to isolate the variable, and remember that you can do anything to the equation as long as you do it to both sides:

Example Question #104 : Algebraic Concepts

Solve:

Possible Answers:

Correct answer:

Explanation:

To solve, use algebra.  Your goal is to isolate the variable, and remember that you can do anything to the equation as long as you do it to both sides:

Example Question #102 : Equations

Solve:

Possible Answers:

Correct answer:

Explanation:

To solve, use algebra.  Your goal is to isolate the variable, and remember that you can do anything to the equation as long as you do it to both sides:

 

Example Question #106 : Algebraic Concepts

Determine the value of .

Possible Answers:

Correct answer:

Explanation:

There are two ways to determine the value of  in this problem.  The first would be to look at your answer choices and see what value of  makes the statement true. 

The second way would be to isolate the variable with the coefficient by adding  to both sides of the equation:

Then divide both sides by the coefficient, which is 

Example Question #103 : Equations

Evaluate the expression if 

Possible Answers:

Correct answer:

Explanation:

To evaluate this expression, insert 8 for the value of each  represented in the equation.

 

Example Question #102 : Equations

Solve for 

Possible Answers:

Correct answer:

Explanation:

To solve for , subtract  from both sides of the equation.

Example Question #103 : Equations

Solve for n.

Possible Answers:

Correct answer:

Explanation:

To solve this equation multiply both sides by 

Example Question #110 : Algebraic Concepts

Solve for :

Possible Answers:

Correct answer:

Explanation:

To solve the equation 

divide both sides by the coefficient of , which is 

Reduce to simplest form:

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