You can put this solution on YOUR website! -3x+y=-3 --> y = 3x-3
4x+2y=14 --> 2x+y = 7
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2x+y = 7
Sub for y
2x +(3x-3) = 7
5x = 10
x = 2
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y = 3
You can put this solution on YOUR website! -3x+y=-3; y = 3x-3
4x+2y=14; 2y = -4x+14; y = -2x+7
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Now I've got these two equations in slope intercept form. Is there anything else they are asking you to do?