Answer:
6.75
Step-by-step explanation:
60i
if you go to mode on your calculator then Chang it from "real" to "a+bi" you can solve for unreal numbers. if you press "2nd" then "." it makes an "i"
7y - 3x = -5
-3x = -7y - 5
x = 7/3y + 5/3
The numbers are -12 and -6:
-12 + -6 = -18
-12 * -6 = 72