Evaluate the expression below when n= 1/2 if needed answer as a fraction or a decimal

Question

6 ( n + 8 ) - 12n

Answer 1

To evaluate the expression 6( n + 8 ) - 12n when n = 1/2, we substitute 1/2 for n:

6(1/2 + 8) - 12(1/2)

First, we simplify the parentheses:

6(1/2 + 16/2) - 12(1/2)
= 6(17/2) - 12(1/2)

Now, we simplify the multiplication of fractions:

6(17/2) - 12(1/2)
= (6 * 17)/(2 * 1) - (12 * 1)/(2 * 1)
= 102/2 - 12/2

Next, we subtract the fractions:

102/2 - 12/2
= (102 - 12)/2
= 90/2
= 45

Therefore, when n = 1/2, the expression 6( n + 8 ) - 12n evaluates to 45.