High School Math : How to solve one-step equations with integers in pre-algebra

Study concepts, example questions & explanations for High School Math

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Example Questions

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Example Question #71 : How To Solve One Step Equations With Integers In Pre Algebra

Solve for  if .

Possible Answers:

Correct answer:

Explanation:

Divide each side of the equation by  to isolate x:

The s on the left side of the equation cancel to leave  by itself.

 

The answer is therefore .

Example Question #72 : How To Solve One Step Equations With Integers In Pre Algebra

Solve for  if .

Possible Answers:

Correct answer:

Explanation:

To solve for  we must get all of the numbers on the other side of the equation as .

To do this in a problem where  is being subtracted by a number, we must add the number to both sides of the equation.

In this case the number is  so we add  to each side of the equation to make it look like this 

The s cancel on the left side and leave  by itself.

Then we perform the necessary addition to get the answer of 

The answer is .

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