- Solve the system 3x+y-z=-3 ...-2x-2y+z=8 ...-4x-y+3z=6?

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9.8 g of H2SO4 is present in 2.0 L of a solution. The molarity of the solution is what? An emergency room doctor says too many die in emergency rooms due to lack of care,america is uncivilized,barbaric,in health matters-..agree? Zinc reacts with hydrochloricacid to produce zincchloride and hydrogen. What volume of hydrogen is produced if you start with 2.5g of zinc? Could I replace my blood with red punch? The non-permissible value(s) for the rational expression (2x^2-x-1)/ (4x^2-3x-1)?