exam Maths Puzzle Numerical Ability

x/x-2 - x+1/x = 8/x^2 - 2x solve for x

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exam Other Question

Solve. 6x - 7 = 2x + 13 I have no idea how to even start this problem, please help.

solve each of the following systems by using either addition or substitution. If a unique solution does not exist, st