document.write( "Question 206160: given the sum of two numbers is thirty and that twice the first number is 3 more than the second,find the largest number \n" ); document.write( "
Algebra.Com's Answer #155720 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! Let x & y be the two numbers. \n" ); document.write( "x+y=30 or x=30-y \n" ); document.write( "2x=y+3 \n" ); document.write( "2(30-y)=y+3 \n" ); document.write( "60-2y=y+3 \n" ); document.write( "-2y-y=3-60 \n" ); document.write( "-3y=-57 \n" ); document.write( "y=-57/-3 \n" ); document.write( "y=19 ans for the larger number. \n" ); document.write( "x+19=30 \n" ); document.write( "x=30-19 \n" ); document.write( "x=11 ans for the smaller number. \n" ); document.write( "Proof: \n" ); document.write( "2*11=19+3 \n" ); document.write( "22=22 \n" ); document.write( " \n" ); document.write( " |