Question

What is the value of the expression (12-x)+ y/2 when x=4 and y=-8?

Answer 1

We need to find the value of the following expression:

`(12-x)+(y)/(2)`

When x=4 and y=-8. This basically means that we must replace x with 4 and y with -8:

`\begin{gathered} (12-x)+(y)/(2) \\ (12-4)+(-8)/(2)=8-4=4 \end{gathered}`

Then the value of the expression when x=4 and y=-8 is 4.