document.write( "Question 347709: Solve the following literal equation:\r
\n" ); document.write( "\n" ); document.write( "Solve f= 1/r sub 1 + 1/r sub 2 for r sub 1\r
\n" ); document.write( "\n" ); document.write( "I do not understand these subs...Please help explain
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Algebra.Com's Answer #248636 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Don't get hung up on that.
\n" ); document.write( "\"f=1%2Fa%2B1%2Fb\" where \"a=r%5B1%5D\", \"b=r%5B2%5D\"
\n" ); document.write( "Multiply both sides by \"ab\"
\n" ); document.write( "\"abf=b%2Ba\"
\n" ); document.write( "\"abf-a=b\"
\n" ); document.write( "\"a%28bf-1%29=b\"
\n" ); document.write( "\"a=b%2F%28bf-1%29\"
\n" ); document.write( "\"r%5B1%5D=r%5B2%5D%2F%28f%2Ar%5B2%5D-1%29\"
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