document.write( "Question 211099: The sum of 2 numbers is 25. 12 less than 4 times one of the numbers is 16 more than twice the other number. Find both numbers. \n" ); document.write( "
Algebra.Com's Answer #159494 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Let the two numbers be a and b. \n" ); document.write( "a+b = 25 \"The sum of two numbers is 25.\" \n" ); document.write( "4a-12 = 2b+16 \"12 less than 4 times one of the numbers (4a-12) is 16 more than twice the other number(2b+16).\" \n" ); document.write( "Rewrite the first equation as: a = 25-b and substitute into the second equation. \n" ); document.write( "4(25-b)-12 = 2b+16 Simplify and solve for b. \n" ); document.write( "100-4b-12 = 2b+16 Add 4b to both sides. \n" ); document.write( "88 = 6b+16 Subtract 16 from both sides. \n" ); document.write( "72 = 6b Divide both sides by 6. \n" ); document.write( "12 = b and... \n" ); document.write( "a = 25-b \n" ); document.write( "a = 25-12 \n" ); document.write( "a = 13 \n" ); document.write( "The two numbers are 12 and 13.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |