document.write( "Question 566006: Elmer is thrice as old as Ruel. in 4 years, elmer will be 2 years more than twice as old as ruel will be. find their present ages. \n" ); document.write( "

Algebra.Com's Answer #366056 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+e+\"$ = Elmer's age now
\n" ); document.write( "Let $\"+r+\"$ = Ruel's age now
\n" ); document.write( "given:
\n" ); document.write( "(1) $\"+e+=+3r+\"$
\n" ); document.write( "(2) $\"+e+%2B+4+=+2%2A%28+r+%2B+4+%29+%2B+2+\"$
\n" ); document.write( "------------------------
\n" ); document.write( "(2) $\"+e+%2B+4+=+2r+%2B+8+%2B+2+\"$
\n" ); document.write( "(2) $\"+e+-+2r+=+6+\"$
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+3r+-+2r+=+6+\"$
\n" ); document.write( "(2) $\"+r+=+6+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+e+=+3r+\"$
\n" ); document.write( "(1) $\"+e+=+18+\"$
\n" ); document.write( "Elmer is 18, and Ruel is 6 }}}
\n" ); document.write( "check:
\n" ); document.write( "(2) $\"+e+%2B+4+=+2%2A%28+r+%2B+4+%29+%2B+2+\"$
\n" ); document.write( "(2) $\"+18+%2B+4+=+2%2A%28+6+%2B+4+%29+%2B+2+\"$
\n" ); document.write( "(2) $\"+22+=+20+%2B+2+\"$
\n" ); document.write( "OK \n" ); document.write( "

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