document.write( "Question 378028: find the values of x and y that solve the following system of equations\r
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document.write( "-3x- 8y=19
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document.write( "4x+9y=-22 \n" );
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Algebra.Com's Answer #268663 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -3x- 8y=19.................1 \n" ); document.write( "4x+9y=-22...................2 \n" ); document.write( ".. \n" ); document.write( "multiply 1 by 4 & 2 by 3 \n" ); document.write( ".. \n" ); document.write( "-12x-32y=76 \n" ); document.write( "12x+27y=-66 \n" ); document.write( "add them \n" ); document.write( "-32y+27y =76-66 \n" ); document.write( "-5y=10 \n" ); document.write( "/-5 \n" ); document.write( "y = -2 \n" ); document.write( "... \n" ); document.write( "plug value of y in 1 \n" ); document.write( "-3x-8*-2=19 \n" ); document.write( "-3x+16=19 \n" ); document.write( "-3x=19-16 \n" ); document.write( "-3x=3 \n" ); document.write( "/-3 \n" ); document.write( "x =-1 \n" ); document.write( "... \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " |