2x+5y+2z=-38
3X - 2Y + 4Z=17
-6X +Y -7 =-12
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3x + y = 4 2x + 5y + 6z = 13 (3) Solve the following equations of three unknown ... x + 2y + 3z = 14 -x +3y + 4z = 17 ... 3x + y + 2z = 4 ... 12x + 13y = 1250 15k
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