If 5x + 3 = 18, what is the value of x?

Question

This algebra question tests a student's ability to solve a basic linear equation. Given the equation 5x + 3 = 18, the student must isolate the variable x by performing inverse operations. Solving for x in this manner helps to reinforce fundamental algebraic skills, such as understanding how to manipulate equations and performing arithmetic operations correctly.

Answer 1

To solve the equation for x, we need to isolate x from the rest of the equation.

To do this first move 3 to the right side of the equation by subtracting it from both sides:

5x + 3 = 18

5x + 3 - 3 = 18 - 3

results in: 5x = 15

We're one step closer to having x by itself. Now we need to divide both sides by 5.

Therefore:

5x / 5 = 15/5

Since 5/5 = 1 and 15/5 = 3 then we will get x by itself as follows:

Solution: x = 3

Answer 2

5x + 3 = 18

-3 -3

5x = 15

5x/5 = 15/5

x = 3

Answer 3

To isolate the variable in the equation 5x+3=18, start by subtracting 3 from both sides of the equation:

5x + 3 - 3 = 18 - 3

Simplify:

5x=15

Divide both sides of the equation by 5:

5/5 x = 15/5

Simplify:

x=3

Answer 4

Hello, thank you for taking the time to post your question!

Your starting point is the equation

5x + 3 = 18

First I would subtract both sides by 3 in order to get

5x = 15

Then you can divide both sides by 5 to get the “x” variable by itself

x = 3

I hope that helps get you moving in the right direction! Feel free to reach out if you have any additional questions beyond that :)

Answer 5

5x+3 = 18

5x = 18-3 =15

x = 15/5 =3

Answer 6

I have solved this question in 4 easy steps. I hope this is helpful. If you have additional questions, please let me know. Take care!

Dr. Christal-Joy Turner

Answer 7

If 5x + 3 = 18, what is the value of x?

This algebra question tests a student's ability to solve a basic linear equation. Given the equation 5x + 3 = 18, the student must isolate the variable x by performing inverse operations. Solving for x in this manner helps to reinforce fundamental algebraic skills, such as understanding how to manipulate equations and performing arithmetic operations correctly.

Solve the following math equation: 5x + 3 = 18

5x + 3 = 18 Rewrite the equation after the arithmetic calculations.

Step 1: 5x + 3 = 18 Subtract 3 from both sides of the equation.

5x + (3 -3) = 18 - 3

5x + 0 = 15 = 5x = 15

Step 2:

5x = 15

Divide both sides of the equation by 5 to isolate x

5x = 15 Simplify 5x divided by 5 = x 15 divided by 5 =3 x = 3

Solution of the equation 5x + 3 = 18 is x = 3 or value of x is 3

I hope the mathematical calculations (step by step approach) was helpful. Please let me know if you require any more assistance. If anyone in my neighborhood is interested in setting up an in-person math tutoring session. I look forward to hearing from them. Have an amazing day. Doris H.

Answer 8

If 5x + 3 = 18, what is the value of x?

In order to solve for x, x must be alone on one side of the equation, equal to the answer. In this problem, x is on the left of the equation, so all of the numbers must be moved to the other side in an algebraic way.

The first step to solve is to subtract 3 from the left.

5x + 3 = 18

-3 -3

5x = 15

The next solving step is to divide 5 from both sides.

5x = 15

/5 /5

x = 5

So if 5x + 3 = 18, then

x = 5

Answer 9

Problem

Given the equation ...

5x + 3 = 18

... follow the steps below to solve for x:

Step 1

Move all x terms to one side of the equation, and all constant (x-less) terms to the other side.

Remember: what you do to one side of the equation, you must do to the other!

5x + 3 = 18 becomes 5x + 3 - 3 = 18 - 3

Then, 5x = 15.

Step 2

Using the equation we found in step 1, we need to solve for x now. To solve for x by itself, divide both sides of the equation by the coefficient of x, which is 5 in this case:

(5x / 5) = (15 / 5)

Therefore, x = 3.

Solution

This equation has one unique solution: x = 3.

Answer 10

5x+3−3=18−3

x=3

Answer 11

Let’s break it down:

1. Start with the equation: 5x+3 = 18.
2. Subtract 3 from both sides to isolate the term with x:

5x = 18 - 3

5x = 15

1. Divide both sides by 5 to solve for x:

5x/5 = 15/5

x = 3

So, the value of x is 3. This question helps students practice solving simple linear equations, which is a fundamental skill in algebra.