document.write( "Question 646751: The sum of two numbers is 78. Their difference is 32.Write a system that describes this situation. Solve by elimination to find the two numbers. \n" ); document.write( "

Algebra.Com's Answer #405932 by Theo(13342) $\"\"$ $\"About$

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x + y = 78
\n" ); document.write( "x - y = 32
\n" ); document.write( "add the 2 equations together to get:
\n" ); document.write( "2x = 110
\n" ); document.write( "divide both sides of this equation by 2 to get:
\n" ); document.write( "x = 55
\n" ); document.write( "substitute in first equation and solve for y to get:
\n" ); document.write( "y = 23
\n" ); document.write( "those are your answers.
\n" ); document.write( "x = 55
\n" ); document.write( "y = 23
\n" ); document.write( "55 + 23 = 78
\n" ); document.write( "55 - 23 = 32
\n" ); document.write( " \n" ); document.write( "

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