document.write( "Question 317718: sue is now 7 times as old as louis. in 6 yearss, sue will be 5 times as old a louis. can you help me find the present age for both sue and louis \n" ); document.write( "
Algebra.Com's Answer #227529 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Try this: \n" ); document.write( "Let S = Sue's present age and L = Louis's present age. \n" ); document.write( "1) S = 7L \"Sue is 7 times as old as Louis.\" \n" ); document.write( "2) S+6 = 5(L+6) \"In 6 years, Sue will be 5 times as old as Louis (will be in 6 years time)\" Substitute equation 1) into equation 2) and solve for L. \n" ); document.write( "2a) (7L)+6 = 5(L+6) Simplify. \n" ); document.write( "7L+6 = 5L+30 Subtract 5L from both sides. \n" ); document.write( "2L+6 = 30 Subtract 6 from both sides. \n" ); document.write( "2L = 24 Divide both sides by 2. \n" ); document.write( "L = 12 and... \n" ); document.write( "S = 7L \n" ); document.write( "S = 7(12) \n" ); document.write( "S = 84 \n" ); document.write( " |