If x≠4 and (x^2 - 16)/(2y) = (x - 4)/4, then in terms of y, x = ?  Choose the correct option: A) (y - 8)/2 B) (y - 3)/2 C) y - 3 D) y - 6 E) (y + 6)/2
Since (x^2 – 16)=(x-4)(x+4) the original equation can be changed into 4*(x-4)(x+4) = 2y *(x-4).   By cancelling 2(x-3) (we can do it because x≠4) we get :   2*(x+4)=y.   So x=(y-8)/2. So the answer is (y - 8)/2).
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If x≠4 and (x^2 - 16)/(2y) = (x - 4)/4, then in terms of y, x = ?