SOLUTION: 1/F = 1/S + 1/U Solve for S

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Question 70773:
1/F = 1/S + 1/U Solve for S
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
1/F=1/S+1/U
1/S=1/F-1/U
1/S=(U-F)/FU NOW CROSS MULTIPLY
S(U-F)=FU NOW DIVIDE BOTH SIDES BY (U-F)
S=FU/(U-F)