document.write( "Question 891918: Robert is 5 years older than Manuel. Four years ago Manuel's age was three-fourths of Robert's age. Find their ages now. \n" ); document.write( "

Algebra.Com's Answer #540147 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+m+\"$ = Manuel's age now
\n" ); document.write( " $\"+m+%2B+5+\"$ = Robert's age now
\n" ); document.write( "----------------------------
\n" ); document.write( " $\"+m+-+4+\"$ = Manuel's age four years ago
\n" ); document.write( " $\"+m+%2B+5+-+4+\"$ = Robert's age four years ago
\n" ); document.write( "---------------------------------------
\n" ); document.write( "given:
\n" ); document.write( " $\"+m+-+4+=+%283%2F4%29%2A%28+m+%2B+5+-+4+%29+\"$
\n" ); document.write( " $\"+m+-+4+=+%28+3%2F4+%29%2A%28+m+%2B+1+%29+\"$
\n" ); document.write( " $\"+4%2A%28+m+-+4+%29+=+3%2A%28+m+%2B+1+%29+\"$
\n" ); document.write( " $\"+4m+-+16+=+3m+%2B+3+\"$
\n" ); document.write( " $\"+m+=+19+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+m+%2B+5+=+24+\"$
\n" ); document.write( "-----------------
\n" ); document.write( "Manuel is 19 now
\n" ); document.write( "Robert is 24 now
\n" ); document.write( "-----------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+m+-+4+=+%28+3%2F4+%29%2A%28+m+%2B+1+%29+\"$
\n" ); document.write( " $\"+19+-+4+=+%28+3%2F4+%29%2A%28+19+%2B+1+%29+\"$
\n" ); document.write( " $\"+15+=+%283%2F4%29%2A20+\"$
\n" ); document.write( " $\"++4%2A15+=+3%2A20+\"$
\n" ); document.write( " $\"+60+=+60+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );