College Math CLEP Prep Practice Exam

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If 3x + 6y = 15, what is the value of x?

The correct answer is: 5

To find the value of x, we can use the given equation and algebraic manipulation. We can start by isolating x on one side of the equation. By subtracting 6y from both sides, we get 3x = 15 - 6y. Then, we can divide both sides by 3 to get the value of x. The correct answer is A because 15 divided by 3 is 5, and when we divide -6y by 3, we get -2y. Therefore, the equation becomes x = 5 -2y. This means that x can have different values depending on the value of y. As for the other options, B, C, and D, they are incorrect because they do not match the given equation. For example, if we substitute x = 7 in the equation, we get 3(7) +