SOLUTION: What the x and the y in substitution system of equations. 3x+y=9 y=-5x+9 show details please.

Question 568510: What the x and the y in substitution system of equations. 3x+y=9 y=-5x+9 show details please.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
3x+y=9

3x+(-5x+9)=9

3x-5x+9=9

-2x+9=9

-2x=9-9

-2x=0

x=0/(-2)

x=0

--------------------------
y = -5x+9

y = -5(0)+9

y = 0+9

y = 9

So the solutions are x = 0 and y = 9
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