Evaluate the expression: 5x – y when
x = -4 and y= -2

marked as brainliest :)

It's a good idea to get into the habit of

using parenthses when substituting

numbers in for variables.

Since x = -4 and y = -2, 5x - y is 5(-4) - (-2).

Now, 5(-4) is -20 and minus a negative 2

can be thought of as plus a positive 2.

So we have (-20) + (+2) which equals -18.

correct

step-by-step explanation:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7