document.write( "Question 295627: I hope someone can help... I have submitted 2 questions in the past any no one has replied.\r
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document.write( "my questions is;
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document.write( "Find the values of X and Y that solve the following system of equations:
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document.write( "2x-9y=-21
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document.write( "-3x-7y=11\r
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document.write( "So far this is what i have done;
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document.write( "-6x-27y=63
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document.write( "6x-14y=23
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document.write( "13y/13 = 41/13
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document.write( "y=41/13\r
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document.write( "2x-9y=-21
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document.write( "2x-9(41/13)=-21
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document.write( "...now what??? help, not sure how to solve with fraction \n" );
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Algebra.Com's Answer #213055 by palanisamy(496)![]() ![]() ![]() You can put this solution on YOUR website! The given equations are \n" ); document.write( "2x-9y=-21 ...(1) \n" ); document.write( "-3x-7y=11 ...(2) \n" ); document.write( "(1)*3 => 6x-27y = -63 .. (3) \n" ); document.write( "(2)*2 => -6x-14y = 22 ...(4) \n" ); document.write( "(3)+(4) =? -41y= -41 \n" ); document.write( " y= (-41)/(-41) \n" ); document.write( " y=1 \n" ); document.write( "(1) => 2x-9*1 = -21 \n" ); document.write( " 2x = -21+9 \n" ); document.write( " 2x = -12 \n" ); document.write( " 2x= -12 \n" ); document.write( " x = -12/2 \n" ); document.write( " x = -6 \n" ); document.write( "The solution is (-6,1) \n" ); document.write( " |