Question

Evaluate -5x+7y when x=-3 y=-4

Answer 1

So u have to replace the x with 3 and the y with 4 so this is the answer -5x3+7x4=13

Answer 2

17

Explanation:

-5x + 7y

now if we plug in the numbers--

15 ✕ 3 + 7 ✕ (-4)

= 45 - 28

= 17