document.write( "Question 1129039: A man is 20years older than his son and the ratio of the ages is 3:8. How old is the son? \n" ); document.write( "
Algebra.Com's Answer #745569 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
let son's age be \"x\"
\n" ); document.write( "if a man is 20 years older than his son, his age is \"x%2B20\"\r
\n" ); document.write( "\n" ); document.write( "if the ratio of the ages is \"3%3A8\", than\r
\n" ); document.write( "\n" ); document.write( "\"x%2F%28x%2B20%29=3%2F8\"\r
\n" ); document.write( "\n" ); document.write( "\"8x=3%28x%2B20%29\"\r
\n" ); document.write( "\n" ); document.write( "\"8x=3x%2B60\"\r
\n" ); document.write( "\n" ); document.write( "\"8x-3x=60\"\r
\n" ); document.write( "\n" ); document.write( "\"5x=60\"\r
\n" ); document.write( "\n" ); document.write( "\"x=60%2F5\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=12%29\"->son is \"highlight%2812%29\" years old\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"x%2B20=32\"->a man's age\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "check the ratio\r
\n" ); document.write( "\n" ); document.write( "\"12%2F32=3%2F8\"\r
\n" ); document.write( "\n" ); document.write( "\"cross%2812%293%2Fcross%2832%298=3%2F8\"\r
\n" ); document.write( "\n" ); document.write( "\"3%2F8=3%2F8\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );