document.write( "Question 118723: Please help with this question--What is the x co-ordinate of the system of equations ? 2x + y = 3 and x - 2y = 4.\r
\n" ); document.write( "\n" ); document.write( "Thanking you
\n" ); document.write( "Gloria
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Algebra.Com's Answer #86861 by m.hansen(16)\"\" \"About 
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2x + y = 3
\n" ); document.write( "x - 2y = 4\r
\n" ); document.write( "\n" ); document.write( ":: if we want the x coordinate, we have to get rid of the y
\n" ); document.write( ":: if we multiply the top equation by 2, the y becomes 2y,
\n" ); document.write( ":: which will cancel the -2y in the second equation
\n" ); document.write( "top equ * 2:
\n" ); document.write( "4x + 2y = 6
\n" ); document.write( ":: now the new top equation and the original bottom equation
\n" ); document.write( "4x + 2y = 6
\n" ); document.write( "x - 2y = 4
\n" ); document.write( ":: add these two equations
\n" ); document.write( "5x + 0 = 10
\n" ); document.write( "5x = 10
\n" ); document.write( ":: divide both sides by 5
\n" ); document.write( "x = 2
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