exam Maths Puzzle Numerical Ability

is 1/-4 is equal to -4?
please answer this......

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exam Other Question

58) Geometry. The length of a rectangle is 2 inches more than twice its width. If the perimeter of the rectangle is 34 inches, find the dimensions of the rectangle. How can I solve 3a + 5b = 31
7a + 5b = 59

Using elimination? (or linear combination method)

Thanks!