Algebra 1 : How to solve one-step equations

Example Questions

← Previous 1 3 4 5 6 7 8 9 53 54

Example Question #1 : Algebra 1

What is the solution of 3x = 9?

6

3

–3

1/3

–6

3

Explanation:

When solving a one step equation like this, we do the inverse operation to isolate the variable. In this case, we have 3x = 9, so we divide both sides by 3 to get x = 3.

3x = 9

(3x)/3 = (9)/3

x = 3

Example Question #1 : Algebra 1

Identify the imaginary part of the following complex number:

Explanation:

A complex number in its standard form is of the form: , where  stands for the real part and  stands for the imaginary part. The symbol  stands for .

The imaginary part is .

Example Question #1 : Algebra 1

Find the conjugate of .

Explanation:

The conjugate is  so that when  is multiplied by its conjugate we get

Since

we get

.

Example Question #1 : How To Solve One Step Equations

Identify the real part of .

Explanation:

A complex number in its standard form is of the form: , where  stands for the real part and  stands for the imaginary part. The symbol  stands for .

The real part is 0.

In this problem there is no real part. Hence the real part equals 0.

Example Question #1 : Linear Equations

Identify the imaginary part of .

Explanation:

A complex number in its standard form is of the form: , where  stands for the real part and  stands for the imaginary part. The symbol  stands for .

The imaginary part equals  based on the definition of a complex number in standard form which is .

Example Question #1 : How To Solve One Step Equations

Identify the conjugate of .

Explanation:

The conjugate of an imaginary number is the opposite of the given imaginary part. For example the conjugate of  is  and conjugate of  equals

Example Question #7 : Algebra 1

Find the conjugate of .

Explanation:

Since  is a real number its conjugate is also .

Example Question #1 : How To Solve One Step Equations

Solve for :

Explanation:

First we will add  to both sides.

Then we will multiple both sides by  to isolate .

Solve for :

Explanation:

Example Question #3 : Algebra 1

What is the value of ?