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The equation you mentioned is not complete. A proper equation would be in the form y = mx + b, where m is the slope, x is the x-coordinate, and b is the y-intercept.
However, if you intended to write the equation as y = mx + b-9, then we can assume that b-9 is the y-intercept. Given m = 5, x = 5, and b-9, we can substitute these values into the equation:
y = 5x + (b-9)
Replacing x with 5:
y = 5(5) + (b-9)
y = 25 + (b-9)
y = 25 + b - 9
Simplifying the expression:
y = b + 16
So, if m = 5, x = 5, and b-9, then y = b + 16.