College Math Placement Practice Test 2025 - Free College Math Questions and Study Guide

Question: 1 / 400

What is the value of x when solving the equation 5x + 3 = 23?

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To find the value of x in the equation 5x + 3 = 23, you need to isolate x. Here’s how you can do that step-by-step:

1. Start with the original equation: 5x + 3 = 23.

2. Subtract 3 from both sides of the equation to get rid of the constant on the left side. This results in:

5x = 23 - 3

5x = 20.

3. Now, divide both sides by 5 to solve for x:

x = 20 / 5

x = 4.

Thus, the solution to the equation 5x + 3 = 23 is x = 4. This means that when you substitute 4 back into the original equation, it will satisfy the equation, confirming that 5(4) + 3 indeed equals 23. Therefore, the correct answer is 4.

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