exam Maths Puzzle Numerical Ability

-47w = 40 + 13w

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exam Other Question

Hello,

How do I find the vertex and intercept, and sketch its graph:

g(x) = x^2 + 2x - 24

Thank you so much! Please help to solve this question:

(1/4) + (1/x) = (1/5) - (3/x)

Also what is x?