PreCalculus - Algebra Fundamental Review (12 of 80) Solving for a Variable in a Formula: Examples

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In this video I will solve for variables in formulas P=2L+2w and F=G(mM)/R^2.
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I'm watching your playlists and I think they are awesome. Nicely structured, very thorough and consistent. Thank you so much!!!

iverson
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literally taking all the playlist before college, best channel ever¡¡, thanks for your videos¡¡

luiscarrion
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I wished I knew this channel earlier. I am a first year BSME and I find these videos very helpful. <3

jholopatron
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This is very helpful. Thank you so much for taking the time to do this!

ashleyb
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in the case of the force of gravity, would you not need a plus minus symbol?
I understand gravity would be a positive magnitude, but wouldnt a negative value represent repulsion?

mathyouforgot
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Great Videos, but I had a question on the gravity question. When you switch the R to the left of the = and the F to the right of the = why don't they become negative? Thanks

markaguiar
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Hello professor. Can you explain why it's legal to diagonally exchange denominators w/ numerators? is that allowed in all equations, or just for these examples; or just with variables?

JossinJax