document.write( "Question 953318: A certain doctor's age is now seven-ninth's of what it will be 18 years from now. Just how old is he now? \n" ); document.write( "
Algebra.Com's Answer #582158 by macston(5194)![]() ![]() You can put this solution on YOUR website! a=his age \n" ); document.write( "a=7/9(a+18) \n" ); document.write( "a=(7/9)a+14 Subtract (7/9)a from each side. \n" ); document.write( "(2/9)a=14 Multiply each side by 9/2. \n" ); document.write( "a=63 ANSWER: he is currently 63 years old \n" ); document.write( "CHECK: \n" ); document.write( "63=(7/9)(63+18) \n" ); document.write( "63=(7/9)81 \n" ); document.write( "63=63\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |