Question 546335
solve for "F" in the following equation: 
P = L + (SQ)/F 
the first step I did to isolate F was to move the L,
P-L = (SQ)/F 
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Invert both sides to get:
F/(SQ) = 1/(P-L)
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Multiply by SQ to get:
F = (SQ)/(P-L)
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Cheers,
Stan H.