document.write( "Question 595372: when three numbers are added in pairs,the sums of the pairs are,22,39,and 45. What are the three numbers? \n" ); document.write( "
Algebra.Com's Answer #377108 by ankor@dixie-net.com(22740)\"\" \"About 
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when three numbers are added in pairs,the sums of the pairs are,22,39,and 45. What are the three numbers?
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\n" ); document.write( "a+b = 22
\n" ); document.write( "a+c = 39
\n" ); document.write( "b+c = 45
\n" ); document.write( ":
\n" ); document.write( "Arrange the last two equations for elimination
\n" ); document.write( "b + c = 45
\n" ); document.write( "a + c = 39
\n" ); document.write( "-------------subtraction eliminates c
\n" ); document.write( "b - a = 6
\n" ); document.write( "b = a+6
\n" ); document.write( "In the first equation, replace b with a+6
\n" ); document.write( "a + (a+6) = 22
\n" ); document.write( "2a = 22 - 6
\n" ); document.write( "2a = 16
\n" ); document.write( "a = 8
\n" ); document.write( "Use the 2nd equation to find c,
\n" ); document.write( "8 + c = 39
\n" ); document.write( "c = 39-8
\n" ); document.write( "c = 31
\n" ); document.write( "Use the last equation to find b
\n" ); document.write( "b + 31 = 45
\n" ); document.write( "b = 45-31
\n" ); document.write( "b = 14
\n" ); document.write( ":
\n" ); document.write( "We have: a=8, b=14, c=31
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