SOLUTION: please solve. 2x+3xy=8;x=-2 i got positive 6 for an answer. what did you guys get?

Question 206507: please solve.

2x+3xy=8;x=-2

i got positive 6 for an answer. what did you guys get?
Found 2 solutions by jim_thompson5910, rfer:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.

Plug in

Multiply

Add to both sides.

Combine like terms on the right side.

Divide both sides by to isolate .

Reduce.

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

Answer:

So the solution is
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
2x+3xy+8
2(-2)+3(-2)(y)=8
-4-6y=8
-6y=8+4
-y=2
y=-2
------------
Proof
2(-2)+3(-2)(-2)=8
-4+12=8
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