document.write( "Question 24536: please help?\r
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document.write( "Use elimination to solve: 4x-y=-3
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document.write( " 5x+2y=-20 \n" );
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Algebra.Com's Answer #13089 by elima(1433) ![]() You can put this solution on YOUR website! First of all you need to multiply the first equation by 2 so you will be able to eliminate a variable; \n" ); document.write( "(2)4x-y=-3 \n" ); document.write( "8x-2y=-6 \n" ); document.write( "5x+2y=-20 \n" ); document.write( "---------- \n" ); document.write( "13x =-26 \n" ); document.write( "x=-2 \n" ); document.write( "Now plug into the equation x=-2; \n" ); document.write( "4(-2)-y=-3 \n" ); document.write( "-8-y=-3 \n" ); document.write( "-y=-3+8 \n" ); document.write( "-y=5 \n" ); document.write( "y=-5 \n" ); document.write( "Hope you understand \n" ); document.write( "=) \n" ); document.write( " |