document.write( "Question 407209: A mother is 21 years older than her 5 years son.After how many years the son will bw 1/3 of his mother \n" ); document.write( "
Algebra.Com's Answer #287294 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A mother is 21 years older than her 5 years son. \n" ); document.write( "After how many years the son will be 1/3 of his mother \n" ); document.write( ": \n" ); document.write( "Let y = no. of years for this to be true \n" ); document.write( ": \n" ); document.write( "y + 5 = \n" ); document.write( "Multiply both sides by 3 \n" ); document.write( "3(y+5) = y + 26 \n" ); document.write( "3y + 15 = y + 26 \n" ); document.write( "3y - y = 26 - 15 \n" ); document.write( "2y = 11 \n" ); document.write( "y = \n" ); document.write( "y = 5.5 yrs, these problems usually have integer solutions, but there it is! \n" ); document.write( " |