Question 566542
put equations in y=mx+b form then graph both equations then find the intersection point. 
5x + y = 0
Subtract 5x from both sides:
y = -5x
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-5x - 2y = 10
Add 2y to both sides:
2y + 10 = -5x
Subtract 10 from both sides:
2y = -5x-10
Divide both sides by 2 to get:
y = (-5/2)x - 5
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Graph both lines on the same set of axes:
{{{graph(400,400,-10,10,-15,10,-5x, (-5/2)x-5)}}}
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Solution: (2,-10)
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Cheers,
Stan H.