document.write( "Question 108863: RICARDO IS 4 YEARS LESS THAN TWICE AS OLD AS HIS SISTER.
\n" ); document.write( "THE SUM OF THEIR AGES IS 20.\r
\n" ); document.write( "\n" ); document.write( "HOW OLD IS RICARDO?
\n" ); document.write( "

Algebra.Com's Answer #79415 by elima(1433)\"\" \"About 
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RICARDO IS 4 YEARS LESS THAN TWICE AS OLD AS HIS SISTER.
\n" ); document.write( "THE SUM OF THEIR AGES IS 20.
\n" ); document.write( "r=ricardo's age
\n" ); document.write( "x=sisters age
\n" ); document.write( "r=2x-4
\n" ); document.write( "===================
\n" ); document.write( "x+2x-4=20
\n" ); document.write( "3x=24
\n" ); document.write( "x=8
\n" ); document.write( "so his sister is 8
\n" ); document.write( "Ricardo = 2(8)-4=12
\n" ); document.write( ":)
\n" ); document.write( "
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