document.write( "Question 1178173: Solve the following system of equations.\r
\n" ); document.write( "\n" ); document.write( "2 x+ 3 y = 4
\n" ); document.write( "5 x - 5 y = -15\r
\n" ); document.write( "\n" ); document.write( "Answer: (x,y) =
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\n" ); document.write( "2 x+ 3 y = 4
\n" ); document.write( "5 x - 5 y = -15\r
\n" ); document.write( "\n" ); document.write( "10 x 15 y = 20
\n" ); document.write( "15 x -15 y = -45
\n" ); document.write( "Add the two equations
\n" ); document.write( "25 x = -25
\n" ); document.write( "/ 25
\n" ); document.write( "x = -1
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "2 x + 3 y = 4
\n" ); document.write( "-2 + 3 y = 4
\n" ); document.write( " 3 y = 6
\n" ); document.write( " y = 2
\n" ); document.write( "Ans x = -1
\n" ); document.write( " y = 2
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\n" ); document.write( "\n" ); document.write( "Answer: (x,y) =(-1,2)
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