California Assessment of Student Performance and Progress (CAASPP) Math Practice Exam

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If 4x = 20, what is the value of x?

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

The correct answer is: x = 5

To find the value of x in the equation 4x = 20, you start by isolating x. This is done by dividing both sides of the equation by 4. When you perform this operation, it looks like this: 4x / 4 = 20 / 4 Simplifying both sides gives you: x = 5 This shows that the value of x is 5, confirming that this is the correct answer. Understanding how to isolate a variable by performing inverse operations is a key concept in solving linear equations. This method can be applied to various equations where you need to solve for an unknown.