What is the answer to y=-x-4 y=3x

X= -1 and Y= -3

Step-by-step explanation:

x = -1

y= -3

Step-by-step explanation:

What you need to do it to plug y into an equation.

{y=-x-4

{y=3x

so

-x-4=3x

and plus x on both sides

4x=-4

divide

x=-1

plug x into equation

y=3x

so

y=3(-1)

so

y=-3

it is true

step-by-step explanation:

all the combinations add up i used   calculator