What is 4x+y=4

x+y=-2?

Answer: x = 2, y = - 4

Step-by-step explanation:

4x + y = 4 - -> y = 4 - 4x

Substitute "y" with 4 - 4x into the other equation and solve for "x":

x + y = - 2

x + (4 - 4x) = - 2

4 - 3x = - 2

- 3x = - 6

x = 2

Substitute "x" with 2 into one of the original equations to solve for "y":

x + y = - 2

(2) + y = - 2

y = - 4