document.write( "Question 826913: Amy is 4 years younger than Carlos. Seven years ago Carlos was twice as old as Amy was then. How old is each now \n" ); document.write( "
Algebra.Com's Answer #498329 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Amy is 4 years younger than Carlos. Seven years ago Carlos was twice as old as Amy was then. How old is each now \n" ); document.write( "----- \n" ); document.write( "Equations: \n" ); document.write( "a = c - 4 \n" ); document.write( "c-7= 2(a-7) \n" ); document.write( "------ \n" ); document.write( "Substitute for \"a\" and solve for \"c\": \n" ); document.write( "c-7 = 2(c-4-7) \n" ); document.write( "c-7 = 2c-22 \n" ); document.write( "c = 15 (Carlos' age now) \n" ); document.write( "---- \n" ); document.write( "Solve for \"a\": \n" ); document.write( "a = c - 4 \n" ); document.write( "a = 15-4 \n" ); document.write( "a = 11 yrs (Amy's age now) \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " |