College Math Placement Practice Test

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Prepare for your College Math Placement Test with our expert-crafted quiz! Practice with diverse question formats and detailed explanations to enhance your math skills and boost your confidence.

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What is the solution to the equation 5(x - 1) = 20?

x = 3
x = 4
x = 5
x = 6

The correct answer is: x = 5

To solve the equation 5(x - 1) = 20, start by isolating the expression inside the parentheses. You can do this by dividing both sides of the equation by 5. This yields: x - 1 = 20 / 5 Simplifying the right side gives: x - 1 = 4 Next, to solve for x, add 1 to both sides: x = 4 + 1 Simplifying this results in: x = 5 Thus, the solution to the equation is x = 5. This confirms that the correct answer aligns with the mathematical process used in solving for x.