document.write( "Question 391897: solve by the substition method
\n" ); document.write( "3x - 2y = -12
\n" ); document.write( "9x + 51 = y\r
\n" ); document.write( "\n" ); document.write( "find the solution and type the ordered pair
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Algebra.Com's Answer #278097 by lwsshak3(11628)\"\" \"About 
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given:solve by the substition method
\n" ); document.write( "3x - 2y = -12
\n" ); document.write( "9x + 51 = y\r
\n" ); document.write( "\n" ); document.write( "3x-2(9x+51)=-12
\n" ); document.write( "3x-18x-102=-12
\n" ); document.write( "-15x=90
\n" ); document.write( "x=-90/15=-6
\n" ); document.write( "y=9*-6+51=-3\r
\n" ); document.write( "\n" ); document.write( "ans :ordered pair for point of intersection, (-6,-3)\r
\n" ); document.write( "\n" ); document.write( "see graph below:\r
\n" ); document.write( "\n" ); document.write( "\"+graph%28+300%2C+200%2C+-10%2C+5%2C+-10%2C+10%2C+1.5x%2B6%2C9x%2B51%29+\"
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