document.write( "Question 567017: 2x-5y=50
\n" ); document.write( "y=7-3x \n" ); document.write( "

Algebra.Com's Answer #366424 by mananth(16946) $\"\"$ $\"About$

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2 x -5 y = 50 .............1
\n" ); document.write( "3 x + 1 y = 7 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by 5
\n" ); document.write( "2 x -5 y = 50
\n" ); document.write( "15 x 5 y = 35
\n" ); document.write( "Add the two equations
\n" ); document.write( "17 x = 85
\n" ); document.write( "/ 17
\n" ); document.write( "x = 5
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "2 x + -5 y = 50
\n" ); document.write( "10 + -5 y = 50
\n" ); document.write( " -5 y = 50-10
\n" ); document.write( " -5 y = 40
\n" ); document.write( " y = -8
\n" ); document.write( " \n" ); document.write( "

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