document.write( "Question 230976: The sum of three numbers is 9. The first number minus the second plus the third is 3. The first minus the third is 1 more than the second. Find the numbers.\r
\n" ); document.write( "\n" ); document.write( "What is the first number? _____\r
\n" ); document.write( "\n" ); document.write( "What is the second number? ______\r
\n" ); document.write( "\n" ); document.write( "What is the third number? ______
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Algebra.Com's Answer #171049 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
Three integers, x, y, z
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\n" ); document.write( "Write an equation for each statement:
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\n" ); document.write( "The sum of three numbers is 9.
\n" ); document.write( "x + y + z = 9
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\n" ); document.write( " The first number minus the second plus the third is 3.
\n" ); document.write( "x - y + z = 3
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\n" ); document.write( " The first minus the third is 1 more than the second.
\n" ); document.write( "x - z = y + 1
\n" ); document.write( "rearrange to:
\n" ); document.write( "x - y - z = 1
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\n" ); document.write( "Add to the 1st equation
\n" ); document.write( "x + y + z = 9
\n" ); document.write( "x - y - z = 1
\n" ); document.write( "----------------addition eliminates y and z, find x
\n" ); document.write( "2x = 10
\n" ); document.write( "x = 5
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\n" ); document.write( "Substitute for x and add the 1st two equations
\n" ); document.write( "5 + y + z = 9 >>>> y + z = 9 - 5 >>>> y + z = 4
\n" ); document.write( "5 - y + z = 3 >>>>-y + z = 3 - 5 >>>>-y + z =-2
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\n" ); document.write( "...................................................................2z = 2
\n" ); document.write( "z = 1
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\n" ); document.write( "I'll let you find y\r
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\n" ); document.write( "\n" ); document.write( " Find the numbers.
\n" ); document.write( "What is the first number? _____
\n" ); document.write( "What is the second number? ______
\n" ); document.write( "What is the third number? ______
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