document.write( "Question 1101074: If parcel A and B together weigh 24 kgs, but parcel B and C together weighs only 21 kgs. When parcel A and C are paired, the combined weight is 27kgs. If the weight of parcel A is represented by a, the weight of parcel B is represented by b and the weight of parcel C is represented by c a. Derive a system of three equations in a, b and c. b. Using the inverse method derive the combined weight of parcel A, B and C. \n" ); document.write( "
Algebra.Com's Answer #715650 by ankor@dixie-net.com(22740)\"\" \"About 
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If the weight of parcel A is represented by a, the weight of parcel B is represented by b and the weight of parcel C is represented by c a.
\n" ); document.write( " Derive a system of three equations in a, b and c. b.
\n" ); document.write( " Using the inverse method derive the combined weight of parcel A, B and C.
\n" ); document.write( ":
\n" ); document.write( "If parcel A and B together weigh 24 kgs,
\n" ); document.write( "a + b = 24
\n" ); document.write( " but parcel B and C together weighs only 21 kgs.
\n" ); document.write( "b + c = 21
\n" ); document.write( " When parcel A and C are paired, the combined weight is 27kgs.
\n" ); document.write( "a + c = 27
\n" ); document.write( ":
\n" ); document.write( "write the system like this
\n" ); document.write( "a + b + 0 = 24
\n" ); document.write( "0 + b + c = 21
\n" ); document.write( "a + 0 + c = 27
\n" ); document.write( "------------------Add
\n" ); document.write( "2a + 2b + 2c = 72
\n" ); document.write( "simplify divide by 2
\n" ); document.write( "a + b + c = 36 kg is the combined weight of the 3 parcels
\n" ); document.write( ":
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\n" ); document.write( "Not sure if this is the inverse method, but this sure is the simplest.
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