document.write( "Question 810284: jake is 5 years older than his sister three years ago jake was twice his sisters age how old is jakes siter now? \n" ); document.write( "
Algebra.Com's Answer #488032 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! jake is 5 years older than his sister \n" ); document.write( "three years ago jake was twice his sisters age \n" ); document.write( "how old is jakes siter now? \n" ); document.write( "------------ \n" ); document.write( "Equations: \n" ); document.write( "j = s + 5 \n" ); document.write( "j-5 = 2(s-5) \n" ); document.write( "------ \n" ); document.write( "Substitute for \"j\" and solve for \"s\":: \n" ); document.write( "s+5-5 = 2s-10 \n" ); document.write( "s = 2s-10 \n" ); document.write( "s = 10 (sister's age now) \n" ); document.write( "---- \n" ); document.write( "Solve for \"j\": \n" ); document.write( "j = s+5 \n" ); document.write( "j = 15 (jake's age now) \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================= \n" ); document.write( " \n" ); document.write( " |