document.write( "Question 58946: 6x-y=-4
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document.write( "2x=2y=15 \n" );
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Algebra.Com's Answer #40437 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 6X-Y=-4 \n" ); document.write( "2X+2Y=15 IF THE = BETWEEN THE X & THE 2 SHOULD BE A + & YOU WANT TO SOLVE THIS SET OF EQUATIONS THEN\r \n" ); document.write( "\n" ); document.write( "6X-Y=-4 \n" ); document.write( "2X+2Y=15 NOW WE MULTIPLY THE FIRST EQAUTION BY 2 AND ADD THESE 2 EQUATIONS \n" ); document.write( "12X-2Y=-8 \n" ); document.write( "------------------------- \n" ); document.write( "14X=7 \n" ); document.write( "X=7/14 \n" ); document.write( "X=.5 OR 1/2 SUBSTITUTING .5 FOR X IN THE SECOND EQUATION WE GET\r \n" ); document.write( "\n" ); document.write( "2*.5+2Y=15 \n" ); document.write( "1+2Y=15 \n" ); document.write( "2Y=15-1 \n" ); document.write( "2Y=14 \n" ); document.write( "Y=14/2 \n" ); document.write( "Y=7 \n" ); document.write( "PROOF \n" ); document.write( "6*.5-7=-4 \n" ); document.write( "3-7=-4 \n" ); document.write( "-4=-4 \n" ); document.write( " \n" ); document.write( " |