Conquer the College Math Placement Challenge 2026 – Step Up and Shine!

Question: 1 / 400

What is the value of x in the equation 3(x + 2) = 21?

x = 3

x = 4

x = 5

To find the value of x in the equation 3(x + 2) = 21, we can start by isolating the variable step by step.

First, divide both sides of the equation by 3 to simplify it. This gives us:

x + 2 = 7

Next, we subtract 2 from both sides to further isolate x:

x = 7 - 2

This simplifies to:

x = 5

Thus, the correct answer is x = 5. This approach involves using basic algebraic principles such as distributing and the operations of addition and subtraction to manipulate the equation until we get to the solution for x.

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x = 6

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