document.write( "Question 456609: my father is 21 years older than me, after a time period of 12 years his age is twice of my age. how old am i ? \n" ); document.write( "
Algebra.Com's Answer #313343 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! my father is 21 years older than me, after a time period of 12 years his age is twice of my age. how old am i ? \n" ); document.write( "--- \n" ); document.write( "Equations: \n" ); document.write( "f = m + 21 \n" ); document.write( "(f+12)=2(m+12) \n" ); document.write( "---- \n" ); document.write( "Substitute for \"f\" and solve for \"m\": \n" ); document.write( "(m+21+12) = 2m+24 \n" ); document.write( "--- \n" ); document.write( "m = 9 yrs (\"me's\" age now) \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |