document.write( "Question 161177: Mrs.Johnson is 3 times as old as her son.Ten years ago she was 5 times as old as her son was then.Find each of their ages. \n" ); document.write( "
Algebra.Com's Answer #118719 by checkley77(12844)\"\" \"About 
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M-10=5(S-10) OR M=5(S-10)+10
\n" ); document.write( "M=3S
\n" ); document.write( "5(S-10)+10=3S
\n" ); document.write( "5S-50+10=3S
\n" ); document.write( "5S-40=3S
\n" ); document.write( "5S-3S=40
\n" ); document.write( "2S=40
\n" ); document.write( "S=40/2
\n" ); document.write( "S=20 AGE OF SON NOW.
\n" ); document.write( "M=3*20=60 AGE OF MOM NOW.
\n" ); document.write( "PROOF:
\n" ); document.write( "60-10=5(20-10)
\n" ); document.write( "50=5*10
\n" ); document.write( "50=50\r
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