High School Math : Algebraic Equations

Study concepts, example questions & explanations for High School Math

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Example Questions

Example Question #11 : How To Solve One Step Equations With Decimals In Pre Algebra

Solve for .

Possible Answers:

Correct answer:

Explanation:

To solve , we need to isolate . That means we want just  on the left hand side.

To do that, we need to divide both sides by .

Example Question #11 : How To Solve One Step Equations With Decimals In Pre Algebra

What is ?

Possible Answers:

Correct answer:

Explanation:

To solve , you can either plug it into your calculator or convert it to a fraction. Since , we can rewrite the equation as:

Example Question #151 : Algebraic Equations

What number is of ?

Possible Answers:

Correct answer:

Explanation:

Verbal cues include "IS" means equals and  "OF" means multiplication.

Example Question #12 : How To Solve One Step Equations With Decimals In Pre Algebra

Michael buys two packs of pencils for  each and three sketch pads for each. He pays for his purchase with .  How much change should he get?

Possible Answers:

Correct answer:

Explanation:

First, calculate how much he spends on pencils and pads.

Pencils: 

Pads: 

Therefore the total spent is .

Then the change is .

Example Question #13 : How To Solve One Step Equations With Decimals In Pre Algebra

Solve for  if .

Possible Answers:

Correct answer:

Explanation:

We need to isolate x so that it is the only term on the left side of the equation.

To do this, add .16 to both sides of the equation:

The numbers on the left side cancel to leave  by itself.

 

The answer is therefore .

 

Example Question #1 : How To Solve Two Step Equations With Integers In Pre Algebra

Possible Answers:

Correct answer:

Explanation:

This is a two-step equation.  First simplify the whole numbers by adding 6 to both sides:

Then divide both sides by 2

Example Question #2 : How To Solve Two Step Equations With Integers In Pre Algebra

Solve for .

Possible Answers:

Correct answer:

Explanation:

Perform the same operation on both sides of the equation.

Add 3 to both sides.

Divide both sides by 4 and simplify the fraction.

Example Question #1 : How To Solve Two Step Equations With Integers In Pre Algebra

Solve the following equation for

Possible Answers:

Correct answer:

Explanation:

To solve a two step equation, we want to isolate the variable. This means first "getting rid of" the number which is being added to the variable, in this case . To get rid of the , we first recognize that it is being added, then we do the inverse and subtract  from both sides.

Now, we want to do the inverse of multiplying by , which is dividing by on both sides.

Example Question #413 : High School Math

Solve the following equation for .

Possible Answers:

Correct answer:

Explanation:

We want to first isolate the variable, thus we first try to get rid of the constants being added to the variable, in this case the . To eliminate , we do the inverse of addition, and subtract  from both sides.

Then, we want to do the inverse of dividing by , which is multiplying by . Remember that multiplying two negative terms results in a positive term.

Example Question #2 : How To Solve Two Step Equations With Integers In Pre Algebra

Solve the equation for .

Possible Answers:

Correct answer:

Explanation:

Subtract from both sides to get the variables on the same side, and simplify.

Divide both sides by .

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