You can put this solution on YOUR website! x+y+z=1800
x=2(y+z)
20x+35y+50z=4800
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put the system of linear equations into standard form
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x+y+z=1800
-x+2y+2z=0
20x+35y+50z=4800
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solution:
x = 1200
y = 3280
z = -2680
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