document.write( "Question 179028: I can't seem to solve both just one of them, where did I go wrong? Please help.
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document.write( "Solve by any method. I tried the addition method.
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document.write( "3x + 2y = -3
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document.write( "2x - 5y = 17\r
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document.write( "I solved for y but when I plugged back in to solve for x it did't work. Thanks. \n" );
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Algebra.Com's Answer #133979 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! 3x + 2y = -3 multiply by 2 \n" ); document.write( "2x - 5y = 17 multiply by -3 \n" ); document.write( "6x+4y=-6 \n" ); document.write( "-6x+15y=-51 \n" ); document.write( "------------------ \n" ); document.write( "19y=-57 \n" ); document.write( "y=-57/19 \n" ); document.write( "y=-3 ans. \n" ); document.write( "3x+2*-3=-3 \n" ); document.write( "3x-6=-3 \n" ); document.write( "3x=-3+6 \n" ); document.write( "3x=3 \n" ); document.write( "x=3/3 \n" ); document.write( "x=1 ans. \n" ); document.write( "Proof: \n" ); document.write( "2*1-5*-3=17 \n" ); document.write( "2+15=17 \n" ); document.write( "17=17\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |