document.write( "Question 1015258: -3x+3y-6z=-21
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document.write( "x-y+2z=7
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document.write( "4x-4y+8z=28 \n" );
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Algebra.Com's Answer #631640 by robertb(5830)![]() ![]() You can put this solution on YOUR website! This system has infinitely many solutions. In fact, the coordinates (x,y,z) of any point on the plane x - y + 2z = 7 will satisfy the system. it is enough to say that the first equation is the second equation multiplied by -3, while the 3rd equation is the second equation multiplied by 4. \n" ); document.write( " |