Question

Explain how to evaluate the expression 4x - 8 for x=5

Answer 1

Substitute 5 for x in the expression

Explanation:

4x - 8, x=5

4(5) - 8

20 - 8

= 12

Answer 2

Answer: 12

Step-by-step explanation: Here, we have the expression 4x - 8 and we want to evaluate the expression when x is equal to 5.

To evaluate an expression, we simply plug the value of the variable into the expression and solve.

So here, since x is equal to 5, we have 4(5) - 8.

4 x 5 is equal to 20 so we have 20 - 8 which is equal to 12.

So the value of our expression when x is equal to 5 is 12.