Thanks for this. Very much appreciated.  Phil

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2. General Khan Academy Questions
3. Mathematics for data and forecasting - course suggestions

I've just completed the Pre-algebra and Algebra basics courses. Simplifying or manipulation of equations was part of those courses. Hope that helps. 😀

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2. General Khan Academy Questions
3. Where to find help/videos on rearranging equations?

Doesn't the orange Crown (as per the picture) mean you've completed? I've got an orange crown on the course I've 100% completed including the course mastery challenge.  On the other course where I'...

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2. General Khan Academy Questions
3. Green Guy On Course Page Still Has Empty Crown Even With 100% Mastery and Good Course Challenge Score