Pre-Algebra : Two-Step Equations with Decimals

Study concepts, example questions & explanations for Pre-Algebra

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Example Questions

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Example Question #1 : Two Step Equations With Decimals

Solve for :

Possible Answers:

Correct answer:

Explanation:

The goal is to isolate the variable to one side.

Subtract  from both sides:

Divide each side by :

 

Example Question #2 : Two Step Equations With Decimals

Solve for :

Possible Answers:

Correct answer:

Explanation:

Step 1: Subtract  from both sides:

Step 2: Divide both sides by :

 

 

 

 

 

Example Question #3 : Two Step Equations With Decimals

Solve for p:

Possible Answers:

Correct answer:

Explanation:

Example Question #4 : Two Step Equations With Decimals

Possible Answers:

Correct answer:

Explanation:

Example Question #5 : Two Step Equations With Decimals

Solve for :

Possible Answers:

Correct answer:

Explanation:

Example Question #6 : Two Step Equations With Decimals

Solve for :

Possible Answers:

Correct answer:

Explanation:

Example Question #7 : Two Step Equations With Decimals

Solve for .

Possible Answers:

Correct answer:

Explanation:

To solve this problem, move all terms with x on one side and all other terms on the other side. We now get

Example Question #8 : Two Step Equations With Decimals

Solve for :

Possible Answers:

Correct answer:

Explanation:

Explanation:

Step 1: Subtract  from both sides:

Step 2: Divide both sides by :

Example Question #9 : Two Step Equations With Decimals

Solve the equation for .

Possible Answers:

Correct answer:

Explanation:

The correct answer to this question is .

To start, you need to move 's one one side of the equation and numbers to the other side of the equation:

First, you subtract  from both sides of the equation. Then, you will have put all of the 's on the same side of the equation:

Next, you add  to the left side of the equation to put all of the numbers on the same side of the equation:

Once you do this, you can add the numbers on the left side of the equation together and find that .

Example Question #10 : Two Step Equations With Decimals

Solve for x:

Possible Answers:

Correct answer:

Explanation:

To solve, use inverse opperations: do the opposite steps in the opposite order. Order of opperations is usually PEMDAS, with addition and subtraction last, so we'll do addition/subtraction first:

right now it says to add , so we'll subtract it from both sides.

next we will do multiplication/dividion. Right now it is multiplying by , so we will divide both sides by .

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