# Answer to Question #16773 in Algebra for Simon

Question #16773

3x + y = 4

x + y = 0

Determine the solution to the system and check your solution in both equations. Input the solution to the system, putting the solution in ordered pair (x, y) form.

x + y = 0

Determine the solution to the system and check your solution in both equations. Input the solution to the system, putting the solution in ordered pair (x, y) form.

Expert's answer

from the second equation x=-y then we use it in the first one

3x+y=4 so

3*(-y)+y=4 -2y=4 y=-2 then x=2

check this solution 3*2+(-2)=4 and

2+(-2)=0

Answer: (2,-2)

3x+y=4 so

3*(-y)+y=4 -2y=4 y=-2 then x=2

check this solution 3*2+(-2)=4 and

2+(-2)=0

Answer: (2,-2)

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