SOLUTION: i really dont understand this lesson well. so my teacher gave me this problem to do on my own and i was wondering was this right:2x-3y=12,x-y=-5 -3y=-2x-12

Question 313471: i really dont understand this lesson well. so my teacher gave me this problem to do on my own and i was wondering was this right:2x-3y=12,x-y=-5

-3y=-2x-12 -y=-x+5
y=2/3x+4 y=x+5
Answer by OmniMaestra(21) (Show Source): You can put this solution on YOUR website!
So far you are doing great but you aren't finished yet. Now that you've solved both equations for y you can use the transitive property that says
if a=y and y=b then a=b so...
if and then

Solve for x
subtract 4 from both sides:------->
subtract x from both sides------>
simplify------------------------->
Multiply both sides by -3--------->
now substitute the -3 into one of the original equations
-y=-x+5
-y=-(-3)+5
-y=8
y=-8
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