book Maths Puzzle Numerical Ability

please help and show me the steps for this equation

2(y-5)+6y+4=62

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book Other Question

A right prism with equilateral triangular bases whose sides are 6 in. and the height of the entire prism is 9 in. (4x-2 / x�-5x) / (2x�+9x-5 / x�-25)