SOLUTION: Solve the following literal equation: Solve f= 1/r sub 1 + 1/r sub 2 for r sub 1 I do not understand these subs...Please help explain

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Question 347709: Solve the following literal equation:
Solve f= 1/r sub 1 + 1/r sub 2 for r sub 1
I do not understand these subs...Please help explain

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
Don't get hung up on that.
where ,
Multiply both sides by





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