document.write( "Question 999145: Solve using addition method\r
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document.write( "x+3y+z=6
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document.write( "3x+y-z=-2
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document.write( "2x+2y-z=1 \n" );
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Algebra.Com's Answer #616851 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve using addition method\r \n" ); document.write( "\n" ); document.write( "x+3y+z=6 \n" ); document.write( "3x+y-z=-2 \n" ); document.write( "2x+2y-z=1 \n" ); document.write( "----------- \n" ); document.write( "Add eqn 1 and eqn 2. \n" ); document.write( "Then add eqn 1 and eqn 3. \n" ); document.write( "--------- \n" ); document.write( "That eliminates z, leaves 2 equations in x & y. \n" ); document.write( "Can you do the rest? \n" ); document.write( " \n" ); document.write( " |