document.write( "Question 1131306: Solve this system of linear equations using the elimination method. Be sure to show all your work.\r
\n" ); document.write( "\n" ); document.write( "12x + 6y = 30\r
\n" ); document.write( "\n" ); document.write( "-2x + 7y = 51
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Algebra.Com's Answer #747940 by Boreal(15235)\"\" \"About 
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multiply second equation by 2 to make the xs cancel
\n" ); document.write( "12x+6y=30
\n" ); document.write( "-12x+42y=306
\n" ); document.write( "48y=336
\n" ); document.write( "y=7\r
\n" ); document.write( "\n" ); document.write( "substitute into first equation 12x+42=30
\n" ); document.write( "12x=-12
\n" ); document.write( "x=-1
\n" ); document.write( "check in second
\n" ); document.write( "2+49=51
\n" ); document.write( "checks
\n" ); document.write( "(-1, 7)
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