document.write( "Question 998051: sum of ages is 40 of two person after 10 year the age of person is twice the age of other person \n" ); document.write( "
Algebra.Com's Answer #615978 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Call their ages now x and y. \n" ); document.write( "Thus x + y = 40 or x = 40 - y \n" ); document.write( "x + 10 = 2(y + 10) \n" ); document.write( "Now substitute \n" ); document.write( "40 - y + 10 = 2y + 20 \n" ); document.write( "50 - y = 2y + 20 \n" ); document.write( "30 = 3y \n" ); document.write( "y = 10 \n" ); document.write( "x = 30 \n" ); document.write( " |