3x - y = 0
5y = 15
5y = 15 Divide by '5' on both sides
Hence y = 3
Substitute for 'y' in the first equation./
3x - 3 = 0
3x = 3
Divide both sides by ;3;
x = 1
So in ( x,y) form the answer is ( 1,3).
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(-5, 2)
The x-intercept is (15 0)
x = 0 and y = 4
5y + x = 0 subtract 5y from each side, then x = -5y
x=(-5y-1)/3