Finding x-intercept

How do you find the coordinates of the x intercept for this equation?
 -x + 5y = -15

To find the x-intercept, put 0 in for y,  because at the x-intercept  (where the line
crosses the x-axis) the y-coordinate is 0.
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-x + 5y = -15
-x + 5(0) = -15  {substituted 0 in for y}
-x = -15  {multiplied 5 by 0}
x = 15  {the x-intercept}
(15,0)  {where the line crosses the x-axis}

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