document.write( "Question 741976: alice and dan's ages add up to 110. dan is two years older than alice. how old are alice and dan \n" ); document.write( "
Algebra.Com's Answer #452231 by only4christ(12)![]() ![]() ![]() You can put this solution on YOUR website! Let A = Alice's age and D = Dan's age \n" ); document.write( "Then, A + D = 110 and D = A + 2\r \n" ); document.write( "\n" ); document.write( "Using the substitution method, we will substitute the equation D=A+2 into the first equation to get:\r \n" ); document.write( "\n" ); document.write( "A + A + 2 = 110 \n" ); document.write( "2A + 2 = 110 Collect like terms \n" ); document.write( "2A = 108 move the 2 to the other side of the equation \n" ); document.write( "A = 54, which is Alice's age\r \n" ); document.write( "\n" ); document.write( "D = A + 2 so D = 54 + 2 = 56, which is Dan's age \n" ); document.write( " |