SOLUTION: Not sure how to solve this problem... -3x + 2y = -14 5x + 6y = -42 Can anyone help me understand this.. Thank you

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Question 353149: Not sure how to solve this problem...
-3x + 2y = -14
5x + 6y = -42

Can anyone help me understand this.. Thank you
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
You can use a couple of different methods:substitution, elimination, matrix inversion.
Here's elimination.
Multiply the first equation by -3 and add the equations together to eliminate y.
9x+-6y+%2B5x+%2B+6y+=42-42
14x=+0
highlight%28x=0%29
Now that you have x, use either equation to solve for y.
0%2B6y=-42
highlight%28y=-7%29