exam Maths Puzzle Numerical Ability

A).
Show the steps that you would take to solve the following algebraically:

3/x-3 = x/x-3 minus 3/2

B.) What potential solution did you obtain. Explain why this is not a solution.

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exam Other Question

Linear programming: the graphical method
determine the coordinates of the corner points for the following system of inequalities:
2x-5y<0
9x-14y<17
1x+3y<28 Find the values of each of the following plynomials of the given values of the variable:
-x^2-5x-6, x = -3 and x = -2

I am not getting this problem and a bit confused on how to solve this,and need some help. Thanks.