document.write( "Question 57746This question is from textbook mcdougal littell
\n" ); document.write( ": r=ab/a+b ;a solve for a \n" ); document.write( "

Algebra.Com's Answer #39421 by funmath(2933) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"r=ab%2F%28a%2Bb%29\"$ ;a solve for a
\n" ); document.write( " $\"r%28a%2Bb%29=ab%28a%2Bb%29%2F%28a%2Bb%29\"$ Multiply both sides by LCD.
\n" ); document.write( " $\"ra%2Brb=ab\"$ Get all the a's on one side of the = sign
\n" ); document.write( " $\"ra-ab%2Brb=ab-ab\"$
\n" ); document.write( " $\"ra-ab%2Brb=0\"$ Get the things without a's on the other side of the = sign.
\n" ); document.write( " $\"ra-ab%2Brb-rb=0-rb\"$
\n" ); document.write( " $\"ra-ab=-rb\"$ Factor out the a on the left.
\n" ); document.write( " $\"a%28r-b%29=-rb\"$ Divide both sides by r-b.
\n" ); document.write( " $\"a%28r-b%29%2F%28r-b%29=-rb%2F%28r-b%29\"$
\n" ); document.write( " $\"a=-rb%2F%28r-b%29\"$ it could be written as: $\"a=rb%2F%28b-r%29\"$
\n" ); document.write( "Happy Calculating!!! \n" ); document.write( "

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