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

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What is the solution for x in the equation: 2x + 6 = 18?

x = 4
x = 5
x = 6
x = 7

The correct answer is: x = 6

To solve the equation 2x + 6 = 18, the first step is to isolate the term with the variable. This is done by subtracting 6 from both sides of the equation, which simplifies it to 2x = 12. Next, to solve for x, you need to divide both sides of the equation by 2. Performing this division gives you x = 6. This solution is correct because substituting x back into the original equation (2(6) + 6 = 18) confirms that both sides are equal. Hence, the correct value for x that satisfies the equation is 6.