Algebra II : Solving Inequalities

Study concepts, example questions & explanations for Algebra II

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Example Questions

Example Question #2114 : Algebra Ii

Solve:

Possible Answers:

Correct answer:

Explanation:

To solve, we must first multiply each side by -1. Multiplying (or dividing) by the negative flips the inequality sign:

Now, we isolate x by multiplying by 5 and adding 1 to both sides:

Example Question #2115 : Algebra Ii

Solve the inequality:  

Possible Answers:

Correct answer:

Explanation:

Add nine on both sides.

Simplify both sides.

Divide by two on both sides.

It is not necessary to change the sign.

The answer is:  

Example Question #2116 : Algebra Ii

Solve the inequality:  

Possible Answers:

Correct answer:

Explanation:

Subtract 4 from both sides of the equation.

Simplify both sides.

Divide both sides by negative three.  Since we are dividing by a negative number, we will need to switch the direction of the sign.

The answer is:  

Example Question #2117 : Algebra Ii

Solve the inequality:  

Possible Answers:

Correct answer:

Explanation:

Add three on both sides.

Simplify both sides.

Divide by negative eight on both sides.  Since we are dividing by a negative sign, the inequality sign will switch directions.

Reduce both fractions.

The answer is:  

Example Question #2118 : Algebra Ii

Solve:  

Possible Answers:

Correct answer:

Explanation:

In order to isolate the x-variable, first subtract five from both sides.

Simplify both sides.

Divide by negative six on both sides.  Remember to switch the sign since we are dividing by a negative number.

The answer is:  

Example Question #41 : Solving Inequalities

Solve the inequality:  

Possible Answers:

Correct answer:

Explanation:

Add  on both sides.

Add seven on both sides.

Divide by 11 on both sides.

 OR 

The answer is:  

Example Question #42 : Solving Inequalities

Solve the inequality:  

Possible Answers:

Correct answer:

Explanation:

To solve the inequality, isolate the integers on one side of the inequality, and the x-variables on another side.

To avoid having to divide by a negative coefficient of , subtract  on both sides.

Add four on both sides.

Simplify both sides.

Divide by 5 on both sides.

The answer is:  

Example Question #43 : Solving Inequalities

Solve the inequality:  

Possible Answers:

Correct answer:

Explanation:

Add nine on both sides.

Simplify both sides.

Divide by eight on both sides.  There is no need to switch the sign.

The answer is:  

Example Question #44 : Solving Inequalities

Solve the inequality:  

Possible Answers:

Correct answer:

Explanation:

Isolate the x-variable terms on one side and the integers on the other.

Add  on both sides of the inequality.

Subtract six from both sides.

Divide by three on both sides and simplify.

The answer is:  

Example Question #45 : Solving Inequalities

Solve the inequality:   

Possible Answers:

Correct answer:

Explanation:

In order to isolate the  variable, subtract  from both sides.  This will prevent us from dividing a negative coefficient and change the sign.

Simplify both sides.

Subtract six on both sides.

Simplify both sides.

Divide by three on both sides.

Simplify both sides.

The answer is:  

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