Calculate the value of the expression: 3(4 + 5) - 7.

Prepare for the Texas Crammer Exam with comprehensive study tools, engaging flashcards and multiple choice questions. Each question includes hints and explanations. Ace your Texas exam!

To evaluate the expression 3(4 + 5) - 7, you'll first want to simplify within the parentheses.

Start with the calculation inside the parentheses: 4 + 5 equals 9.

Next, you multiply this result by 3:
3 * 9 equals 27.

Finally, subtract 7 from this product:
27 - 7 equals 20.

This step-by-step process confirms that the value of the expression is indeed 20, making it the correct choice.