document.write( "Question 1127308: The sum of two numbers is 20. The difference between three times the first number and twice the second is 40. What are the two numbers \n" ); document.write( "
Algebra.Com's Answer #743699 by ankor@dixie-net.com(22740)\"\" \"About 
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The sum of two numbers is 20.
\n" ); document.write( "a + b = 20
\n" ); document.write( " The difference between three times the first number and twice the second is 40.
\n" ); document.write( "3a - 2b = 40
\n" ); document.write( " What are the two numbers?
\n" ); document.write( "Multiply the 1st equation by 2, add to the 2nd equation
\n" ); document.write( "2a + 2b = 40
\n" ); document.write( "3a - 2b = 40
\n" ); document.write( "----------------addition eliminates b, find a
\n" ); document.write( "5a + 0 = 80
\n" ); document.write( "a = 80/5
\n" ); document.write( "a = 16
\n" ); document.write( "find b
\n" ); document.write( " 16 + b = 20
\n" ); document.write( " b = 20 - 16
\n" ); document.write( " b = 4
\n" ); document.write( ":
\n" ); document.write( ";
\n" ); document.write( "Check in the 2nd equation
\n" ); document.write( "3(16) - 2(4) =
\n" ); document.write( "48 - 8 = 40
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