document.write( "Question 44704: equations in three linear variables\r
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document.write( "6x-4y+5z=31
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document.write( "5x+2y+2z=13
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document.write( "x+y+z=2\r
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document.write( "wouldn't you multiply the second equation by 2? \n" );
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Algebra.Com's Answer #29634 by OHtutor(16)![]() ![]() ![]() You can put this solution on YOUR website! no, you don't have to multiple because the equation doesn't have fractions. \n" ); document.write( "You would try to move 2 of the varables to the right and work with2 of the variables. \n" ); document.write( "6x=4y-5x+31 \n" ); document.write( "2y=-5x-2z+13 \n" ); document.write( "y=(-5x-2z+13)/2 \n" ); document.write( "Now put the above equation into each of the other 2 equations left and then work just with x and z (it will be just a 2 variable equation after that) \n" ); document.write( " |