document.write( "Question 356202: Dad is 42 years old and his son is 10. In how many years will Dad be 3 times as old as his son? \n" ); document.write( "
Algebra.Com's Answer #254261 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
let the number of years after which dad is 3 times be x
\n" ); document.write( "42+x = 3(10+x)
\n" ); document.write( "42+x = 30+3x
\n" ); document.write( "42-30=3x-x
\n" ); document.write( "12=2x
\n" ); document.write( "x=6 after 6 years.
\n" ); document.write( "...
\n" ); document.write( "m.ananth@hotmail.ca
\n" ); document.write( "
\n" );