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

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

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Example Questions

Example Question #61 : How To Find The Solution To An Equation

What is the value of ?

Possible Answers:

Correct answer:

Explanation:

To solve, we will need to isolate the variable, . Start by solving the right side of the equation.

Next, divide both sides of the equation by 2.

The left side of the equation simplifies.

Reduce the fraction on the right side of the equation to get the final answer.

Example Question #62 : How To Find The Solution To An Equation

Solve for

Possible Answers:

Correct answer:

Explanation:

To solve, the first step is to isolate the  by adding 25 to each side.

Next, each side should be divided by 5.

Example Question #63 : How To Find The Solution To An Equation

What is the value of  in the equation?

Possible Answers:

None of these

Correct answer:

Explanation:

This question largely relies on order of operations.

To solve this equation, the first step is to solve for the value in parenthesis:

Next, multiply 4 by 2. 

Next, subtract  from each side of the equation. 

Now, multiple each side by . This results in:

Example Question #64 : How To Find The Solution To An Equation

Find the value of

Possible Answers:

Correct answer:

Explanation:

To solve for this equation, the first step is to solve for the numbers in the parentheses. 

This gives us:

Subtract 7 from each side to isolate the variable.

Finally, divide by . This will cancel on the right side to get the variable alone.

Any number divided by itself is equal to 1.

Example Question #65 : How To Find The Solution To An Equation

What is the value of  in the equation below?

Possible Answers:

Correct answer:

Explanation:

First, the distributive property should be applied on the left side of the equation, and the order of operations should be applied to the left side.

Next, subtract 14 from each side 

Now, divide each side by 2. 

Example Question #66 : How To Find The Solution To An Equation

What is the value of  in the equation?

Possible Answers:

Correct answer:

Explanation:

The first step is to subtract 11 from each side:

Now, multiple each side by 4:

Example Question #67 : How To Find The Solution To An Equation

Solve for  in the equation:

Possible Answers:

Correct answer:

Explanation:

First, cross multiply in order to simplify the equation:

Next, divide each side by 12. 

Simplify.

 

Example Question #68 : How To Find The Solution To An Equation

Find the value of :

Possible Answers:

None of these

Correct answer:

Explanation:

The first step to solve this question is to apply the distributive property on the right side. 

Next, add 3 to each side. 

Next, subtract  from each side. 

Now divide each side by

Example Question #61 : Algebraic Concepts

What is the value of x in the equation below?

Possible Answers:

Correct answer:

Explanation:

To solve the equaton below, 8 must be subtracted from each side. 

If 9 is divided by 3, the result will be 3. Therefore, the correct answer is that x is equal to 3. 

Example Question #70 : How To Find The Solution To An Equation

What is the value of  given the expressions below?

Possible Answers:

Correct answer:

Explanation:

In order to solve for the value of , the value of c and d must be solved for first. 

Here, 1 must be added to each side of the equation. 

Thus,  is equal to .

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