exam Maths Puzzle Numerical Ability

Reduce the given expression to lowest terms
-v - 1/ -7

??? is it v + 1/ 7

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exam Other Question

what is the product of x^2-x-6/x^2-3x+2 X 2x^2-6x+4/x^2-2x-3? Find values for m and b in the following system so that the solution to the system is (-3,4).
5x + 7y = b
mx + y = 22