document.write( "Question 28920: Solve the equation:\r
\n" ); document.write( "\n" ); document.write( "r/5 + 6/5 = r/7 + 8/7\r
\n" ); document.write( "\n" ); document.write( "I have no idea on how to go about this. Any and help would be greatly appreciated.
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Algebra.Com's Answer #15797 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The least common multiple (LCM) is 35
\n" ); document.write( "Multiply through by the LCM to get rid of the denominators.
\n" ); document.write( "7r+42=5r+40
\n" ); document.write( "2r=-2
\n" ); document.write( "r=-1
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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