A plane passes through the points $(-5,0,0),$ $(0,2,0),$ and $(0,0,-7).$  Find the distance from the origin to this plane.
Question:
A plane passes through the points $(-5,0,0),$ $(0,2,0),$ and $(0,0,-7).$  Find the distance from the origin to this plane.
Answer:
Let's think step by step.

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\frac{70}{39}
A plane passes through the points $(-5,0,0),$ $(0,2,0),$ and $(0,0,-7).$  Find the distance from the origin to this plane.
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