SOLUTION: I need help on steps for solving a system of equations in substituting, elimination,and graphing method for problem. X+3y=-4 X+y=0 Thank you in advance for your help, I t

Question 922954: I need help on steps for solving a system of equations in substituting, elimination,and graphing method for problem.
X+3y=-4
X+y=0
Thank you in advance for your help,
I tried to work the problem below
Y=-x+0
X+3(-x+0)=-4
X+-3+0=-4
-2x+0=4
(2,2)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
x+y = 0 leads to y = -x

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x+3y = -4

x + 3(-x) = -4

x - 3x = -4

-2x = -4

x = -4/(-2)

x = 2

-------------------------------------------------------

y = -x

y = -2

-------------------------------------------------------

The solution as an ordered pair is (2, -2)

Notice how y is -2 and NOT +2.

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Let me know if that helps or not. Thanks.

If you need more help, feel free to email me at jim_thompson5910@hotmail.com

My Website: http://www.freewebs.com/jimthompson5910/home.html

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