document.write( "Question 263319: Solve the following system by addition, if possible.
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document.write( "6x + 8y = 9
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document.write( "3x - 3y = -2\r
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document.write( "x=?
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document.write( "y=? \n" );
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Algebra.Com's Answer #194028 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "6x + 8y = 9 \n" ); document.write( "3x - 3y = -2 \n" ); document.write( "multiply 2nd by -2 \n" ); document.write( "-6x+6y=4 \n" ); document.write( "6x+8y=9 \n" ); document.write( "add them \n" ); document.write( "14y=13 \n" ); document.write( "y=13/14 \n" ); document.write( "x=11/42 \n" ); document.write( "3x-3(13/14)=-2 \n" ); document.write( "3x-39/14=-28/14 \n" ); document.write( "3x=11/14 \n" ); document.write( "3x=33/42 \n" ); document.write( "x=11/42 \n" ); document.write( " |