Evaluate the expression: 6(x + 8) for x = 4.
To evaluate the expression 6(x + 8) for x = 4, we need to substitute the value of x into the expression and simplify.
First, replace every instance of x in the expression with the given value, which is 4. Here's what it looks like after substitution:
6(4 + 8)
Next, simplify the expression within the parentheses:
6(12)
Now, multiply the number outside the parentheses (6) by the number inside the parentheses (12):
6 * 12 = 72
Therefore, when x = 4, the expression 6(x + 8) evaluates to 72.