document.write( "Question 695910: Im working on solving linear equations by elimination.\r
\n" ); document.write( "\n" ); document.write( "whats 2x-y=9 and 3x+4y=-14
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Algebra.Com's Answer #428686 by ReadingBoosters(3246)\"\" \"About 
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Multiply the first equation by 4, to have the same y coefficents in differing signs, then add the equaitons and solve for x
\n" ); document.write( "4(2x-y=9) => 8x - 4y = 36
\n" ); document.write( "3x + 4y = -14
\n" ); document.write( "8x + 3x - 4y + 4y = 36 + -14
\n" ); document.write( "11x = 22
\n" ); document.write( "x = 2
\n" ); document.write( "...
\n" ); document.write( "Multiply the first equation by 3 and the second equation by -2, add the equations and solve for y
\n" ); document.write( "3(2x-y=9) ==> 6x - 3y = 27
\n" ); document.write( "-2(3x+4y=-14) ==> -6x - 8y = 28
\n" ); document.write( "6x + -6x + -3y + -8y = 27 + 28
\n" ); document.write( "-11y = 55
\n" ); document.write( "y = -5
\n" ); document.write( "...
\n" ); document.write( "Solution (2, -5)
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