Algebra 1 : How to solve one-step equations

Study concepts, example questions & explanations for Algebra 1

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Example Questions

Example Question #171 : How To Solve One Step Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Subtract  from both sides of the equation.

Example Question #172 : Linear Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Subtract  from both sides of the equation. Remember to line-up the decimals. When adding with negative numbers, we treat as an addition problem and just put a negative sign in front. 

Example Question #171 : Algebra 1

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Add  to both sides of the equation.

Example Question #172 : Algebra 1

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Add  to both sides of the equation. Remember to line-up the decimals.

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Example Question #171 : How To Solve One Step Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Add . to both sides of the equation. Remember to line-up the decimals.

 

When adding with negative numbers, we compare the values.  is greater than  and  is negative so our answer is negative. We treat as subtraction problem. 

Example Question #176 : Linear Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Divide both sides of the equation by .

Example Question #177 : Linear Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

  

Divide both sides of the equation by .

We can move one decimal place to the right since both numerator and denominator have one decimal digit.

Example Question #178 : Linear Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Divide both sides of the equation by .

We can move one decimal place to the right since both numerator and denominator have one decimal digit. 

When dividing one negative number with another negative number, our answer becomes positive.

Example Question #179 : Linear Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Multiply both sides of the equation by .

Example Question #180 : Linear Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

 

Multiply both sides of the equation by .

After getting the product, remember to count the decimal places in both numbers. There are a total of two decimal places so we put the decimal between  and .

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