exam Maths Puzzle Numerical Ability

step by step on how to solve a rational equation 1/5 + 1/x = 1/2

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exam Other Question

I need help answering the questions about the diagram of the triangle. They are asking what I can conlcude about the triangle and it's angles. Simplify than evaulate the expression:

a = 3, b = -2, c = -6

9a + 3 - 2a