College Math CLEP Prep Practice Exam

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How do you solve an equation for x?

Add x to both sides of the equation
Subtract x from both sides of the equation
Divide both sides of the equation by x
Multiply both sides of the equation by x

The correct answer is: Divide both sides of the equation by x

To solve an equation for x, you need to isolate the variable by performing inverse operations on the equation. In this case, since x is being divided by a number, the inverse operation would be to multiply both sides of the equation by that number. This eliminates the x on the denominator and leaves x on the numerator, thus solving the equation for x. A, B, and D are incorrect because they all involve adding, subtracting, or multiplying x instead of dividing it. This would result in changing the value of x, which would not solve the equation.