document.write( "Question 868926: Solve the system using elimination. (If there is no solution, enter NO SOLUTION. If there are infinitely many solutions, enter INFINITELY MANY.)
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document.write( "4x + 2y = −4
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document.write( "−2x = −4y + 12
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Algebra.Com's Answer #523928 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! 4x + 2y = −4 [multiply by -2 & add.]\r \n" ); document.write( "\n" ); document.write( "−2x = −4y + 12\r \n" ); document.write( "\n" ); document.write( "-2x+4y=12 \n" ); document.write( "-8x-4y=8 \n" ); document.write( "------------- \n" ); document.write( "-10x=20 \n" ); document.write( "x=20/-10 \n" ); document.write( "x=-2 ans. \n" ); document.write( "4*-2+2y=-4 \n" ); document.write( "-8+2y=-4 \n" ); document.write( "2y=-4+8 \n" ); document.write( "2y=4 \n" ); document.write( "y=4/2 \n" ); document.write( "y=2 ans. \n" ); document.write( "Proof: \n" ); document.write( "-2*-2=-4*2+12 \n" ); document.write( "4=-8+12 \n" ); document.write( "4=4 \n" ); document.write( " \n" ); document.write( " |