exam Maths Puzzle Numerical Ability

solve using cramer's rule

2x-y+3z=9
x +2z=3
3x+2y+z=10

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exam Other Question

Change 5/9 to a decimal. Round to three decimal Places. (show your work) Add -2 to both sides of the inequality 5 > 3. Then divide both sides of the inequality -20 > -30 by -2. Explain in your own words what happens in both examples and when the directi