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Write the given equation in the slope-intercept form, y = mx + b, where m is the slope of the line.

9x - 3y = -81 (subtract 9x to both sides)
-3y = -9x - 81 (divide by -3 to both sides)
y = 3x + 27

Thus, the slope of the line is 3.

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Q: What is the slope of the line 9x-3y equals -81?
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