document.write( "Question 256628: Kate is three years less than twice as old as her brother Brett. Next year Bretts age will be three fourths Kates age. How old is each now?
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Algebra.Com's Answer #188731 by checkley77(12844) ![]() You can put this solution on YOUR website! K=X \n" ); document.write( "B=2X-3 \n" ); document.write( "NEXT YEAR: \n" ); document.write( "X+1=(2X-3+1)*3/4 \n" ); document.write( "X+1=(6X-9+3)/4 \n" ); document.write( "X+1=(6X-6)/4 CROSS MULTIPLY \n" ); document.write( "4(X+1)=6X-6 \n" ); document.write( "4X+4=6X-6 \n" ); document.write( "4X-6X=-6-4 \n" ); document.write( "-2X=-10 \n" ); document.write( "X=-10/-2 \n" ); document.write( "X=5 ANS. FOR KATE'S AGE NOW. \n" ); document.write( "2*5-3=10-3=7 ANS. FOR BRETT'S AGE NOW. \n" ); document.write( "PROOF: \n" ); document.write( "5+1=(7+1)3/4 \n" ); document.write( "6=8*3/4 \n" ); document.write( "6=24/4 \n" ); document.write( "6=6 \n" ); document.write( " |