Algebra II : Equations

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #24 : How To Find The Solution For A System Of Equations

What is the sum of and for the following system of equations?

Possible Answers:

Correct answer:

Explanation:

Add the equations together.

Put the terms together to see that .

Substitute this value into one of the original equaitons and solve for .

Now we know that , thus we can find the sum of and .

Example Question #41 : Solving Equations

Solve for :

Possible Answers:

Correct answer:

Explanation:

Combine like terms on the left side of the equation:

Use the distributive property to simplify the right side of the equation:

Next, move the 's to one side and the integers to the other side:

Example Question #41 : Solving Equations

Solve for :

Possible Answers:

None of the other answers

Correct answer:

Explanation:

To solve for , you must isolate it so that all of the other variables are on the other side of the equation. To do this, first subtract from both sides to get . Then, divide both sides by  to get .

Example Question #41 : Solving Equations

, solve for .

Possible Answers:

Correct answer:

Explanation:

First you need to subtract 12 from both sides of the equation: 

 

This gives us 

 

Then, divide each side by 3:

   which, when simplified, gives us: 

Example Question #42 : Solving Equations

Solve for :

Possible Answers:

None of the other answers.

Correct answer:

Explanation:

Step 1: Multiply both sides of the equation by 4.

Step 2: Combine the 's.

Step 3: Divide both sides of the equation by -11. 

Example Question #43 : Solving Equations

Solve for :

Possible Answers:

None of the other answers.

Correct answer:

Explanation:

Step 1: Multiply both sides of the equation by 2.

Step 2: Add  to both sides of the equation, and subtract 30 from both sides of the equation.

Step 3: Divide both sides of the equation by 11.

Example Question #44 : Solving Equations

Solve for :

Possible Answers:

None of the other answers.

Correct answer:

Explanation:

Step 1: Multiply both sides of the equation by 3.

Step 2: Subtract 60 from both sides of the equation.

Step 3: Divide both sides of the equation by 2.

Example Question #45 : Solving Equations

Solve for :

Possible Answers:

None of the other answers.

Correct answer:

Explanation:

Step 1: Multiply both sides of the equation by 5.

Step 2: Add 110 to both sides of the equation.

Example Question #45 : Solving Equations

Solve for :

Possible Answers:

None of the other answers.

Correct answer:

Explanation:

Step 1: Multiply both sides of the equation by 5.

Step 2: Combine the 's. 

Step 3: Add  to both sides of the equation.

Step 4: Divide both sides of the equation by 31.

Example Question #48 : Solving Equations

Solve for :

Possible Answers:

None of the other answers.

Correct answer:

Explanation:

Step 1: Multiply both sides of the equation by 2.

Step 2: Subtract 40 from both sides of the equation.

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