document.write( "Question 718485: Solve the following system of equations.\r
\n" ); document.write( "\n" ); document.write( "8x+5y=-10
\n" ); document.write( "5x+7y=17 \n" ); document.write( "

Algebra.Com's Answer #440941 by mananth(16946) $\"\"$ $\"About$

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8 x + 5 y = -10 .............1
\n" ); document.write( "Total value
\n" ); document.write( "5 x + 7 y = 17 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -7
\n" ); document.write( "Multiply (2) by 5
\n" ); document.write( "-56 x -35 y = 70
\n" ); document.write( "25 x + 35 y = 85
\n" ); document.write( "Add the two equations
\n" ); document.write( "-31 x = 155
\n" ); document.write( "/ -31
\n" ); document.write( "x = -5
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "8 x + 5 y = -10
\n" ); document.write( "-40 + 5 y = -10
\n" ); document.write( " 5 y = -10 + 40
\n" ); document.write( " 5 y = 30
\n" ); document.write( " y = 6
\n" ); document.write( " \n" ); document.write( "

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