Pre-Algebra : One-Step Equations with Fractions

Study concepts, example questions & explanations for Pre-Algebra

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Example Questions

Example Question #11 : One Step Equations With Fractions

Solve:

Possible Answers:

Correct answer:

Explanation:

Eliminate the denominator by multiplying both sides by 5:

Isolate the variable by dividing both sides by 6:

Reduce the fraction to it lowest terms by dividing 20 and 6 by 2:

Example Question #72 : One Step Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

Divide both sides by :

Simplify:

Example Question #11 : One Step Equations With Fractions

Solve for :

Possible Answers:

Correct answer:

Explanation:

To get x by itself multiply both sides by 4 to get

, then divide both sides by 3 to get

When you simplify, you can cancel the three on bottom with the 3 in the numerator because it is a factor of 36 leaving you with:

Example Question #12 : One Step Equations With Fractions

Solve for :

Possible Answers:

Correct answer:

Explanation:

The goal is to isolate x so to solve this you will first multiple both sides by 4 

This gives you:

You must then divide both sides by 3

you then get your answer:

Example Question #75 : One Step Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

To solve this equation, isolate  on one side.

First, move the fraction to the other side by multiplying by its reciprocal.

Next, simplify the complex fraction.

Example Question #13 : One Step Equations With Fractions

Solve for :

Possible Answers:

Correct answer:

Explanation:

The goal is to isolate the variable on one side.

The opposite operation of addition is subtraction so subtract  from each side:

Simplifying, we get the solution:

Finally, reducing to simplest terms:

Example Question #14 : One Step Equations With Fractions

Solve for :

Possible Answers:

Correct answer:

Explanation:

The goal is to isolate the variable on one side.

The opposite operation of subtraction is addition so add  to each side:

Simplifying, we get the final solution:

Reducing the fraction we obtain the final solution:

Example Question #78 : One Step Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

Explanation:

Isolate the variable to one side.

Multiply each side by  :

Example Question #79 : One Step Equations

Solve for ""

Possible Answers:

Correct answer:

Explanation:

Because of the fraction, you must mulitply each side by 6, removing the .

The problem then reads .

Example Question #81 : One Step Equations

Solve for .

Possible Answers:

Correct answer:

Explanation:

To get z by itself, you must divide both sides of the equation by 4

which simplifies to

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