Algebra 1 : How to solve one-step equations

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #241 : How To Solve One Step Equations

Solve for .

Possible Answers:

Correct answer:

Explanation:

In order to solve for , we need to isolate it on the left side of the equation. We will do this by performing the same operations to both sides of the given equation:

 
Divide both sides of the equation by 

Solve.

Example Question #241 : Algebra 1

Solve for .

Possible Answers:

Correct answer:

Explanation:

In order to solve for , we need to isolate it on the left side of the equation. We will do this by performing the same operations to both sides of the given equation:

 

Divide both sides of the equation by .

Solve. When dividing a positive number by a negative number, our answer becomes negative.

Example Question #242 : Algebra 1

Solve for .

Possible Answers:

Correct answer:

Explanation:

In order to solve for , we need to isolate it on the left side of the equation. We will do this by performing the same operations to both sides of the given equation:

 

Divide both sides of the equation by 

Solve. When dividing a negative number by a negative number, our answer becomes positive.

Example Question #243 : Algebra 1

Solve for .

Possible Answers:

Correct answer:

Explanation:

In order to solve for , we need to isolate it on the left side of the equation. We will do this by performing the same operations to both sides of the given equation:

 

Multiply both sides of the equation by .

Solve.

Example Question #244 : Algebra 1

Solve for .

Possible Answers:

Correct answer:

Explanation:

In order to solve for , we need to isolate it on the left side of the equation. We will do this by performing the same operations to both sides of the given equation:

 

Multiply both sides of the equation by .

Solve. When multiplying a positive number by a negative number, our answer is negative.

Example Question #245 : Algebra 1

Solve for .

Possible Answers:

Correct answer:

Explanation:

In order to solve for , we need to isolate it on the left side of the equation. We will do this by performing the same operations to both sides of the given equation:

 

Multiply both sides of the equation by 

Solve. When multiplying a negative number by a negative number, our answer is positive.

Example Question #246 : Algebra 1

Solve the equation for :

Possible Answers:

Correct answer:

Explanation:

To solve this question you need to get  by itself. To do this you must bring the  over by doing the opposite of addition which is subtraction.

So,   

which simplifies to: 

Example Question #247 : Algebra 1

Solve the following equation for :

 

Possible Answers:

No solution

Correct answer:

Explanation:

In order to solve for , we need to get the variable by itself on one side of the equation. For our problem,  is being added to , so the variable is not by itself. However, we are able to subtract  from both sides of the equation and still keep it balanced. Hence, our answer is .

Example Question #249 : Algebra 1

Solve for : .

 

Possible Answers:

Correct answer:

Explanation:

In order to solve for in the above equation, we must isolate it on one side of the equation. We can do this by applying an operation to that is the inverse (opposite) of what's currently being applied to .

Given , we see that  is being subtracted from , so we need to add  to both sides of the equation to isolate :

Example Question #250 : Algebra 1

Solve for .

Possible Answers:

Correct answer:

Explanation:

In order to solve for  in the above equation, we must isolate it on one side of the equation. We can do this by applying an operation to  that is the inverse (opposite) of what's currently being applied to .

Given , we see that  is being added to , so we need to subtract  from both sides of the equation to isolate :

 

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