document.write( "Question 220489: the sum of two numbers is -11. twice the first nuber minus the second is 32. find the numbers. \n" ); document.write( "
Algebra.Com's Answer #165672 by ankor@dixie-net.com(22740)\"\" \"About 
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let x & y be the two numbers
\n" ); document.write( ":
\n" ); document.write( "Write an equation for each statement:
\n" ); document.write( ":
\n" ); document.write( "\"the sum of two numbers is -11.\"
\n" ); document.write( "x + y = -11
\n" ); document.write( ";
\n" ); document.write( "\"twice the first number minus the second is 32.\"
\n" ); document.write( "2x - y = 32
\n" ); document.write( "-y = -2x + 32
\n" ); document.write( "Multiply equation by -1
\n" ); document.write( "y = 2x - 32
\n" ); document.write( ":
\n" ); document.write( "Substitute (2x-32) for y in the 1st equation
\n" ); document.write( "x + 2x - 32 = -11
\n" ); document.write( "3x = -11 + 32
\n" ); document.write( "3x = 21
\n" ); document.write( "x = \"21%2F3\"
\n" ); document.write( "x = 7
\n" ); document.write( ":
\n" ); document.write( "Find y using the 2nd equation
\n" ); document.write( "2x - y = 32
\n" ); document.write( "2(7) - y = 32
\n" ); document.write( "14 - y = 32
\n" ); document.write( "-y = 32 - 14
\n" ); document.write( "-y = 18
\n" ); document.write( "y = -18
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\n" ); document.write( ":
\n" ); document.write( "Check solution in 1st equation
\n" ); document.write( "7 - 18 = -11
\n" ); document.write( ":
\n" ); document.write( "find the numbers. 7 & -18 \n" ); document.write( "
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