Evaluate the expression, using the given value of the variable.

Question

z ÷ 4 – 8z + 2(z – 5) when z = 12

Question 3 options:

–74

107

–34

–79

Answer 1

To evaluate the expression, substitute the value of z, which is 12, into the expression.

12 ÷ 4 - 8 * 12 +2 * (12 - 5)

Simplify the expression using the order of operations.

3 - 96 + 2 * 7

Multiply first.

3 - 96 + 14

Combine like terms.

-93 + 14

-79

The expression evaluates to -79 when z is equal to 12.

Therefore, the answer is -79.