Explanation for Question 12 From the Math (No Calc) Section on the 2017 October Sat
Question 12 asks, which of the following is equivalent to the expression above for 2 X is greater than zero. So define what this is equivalent to. 3 I'm going to need to add these two terms together. 4 So one over two X plus one plus five 5 over one. But to add these together, 6 I'm going to need them to have the same denominator. 7 So I'm going to multiply five over one by two X plus one over 8 two ax plus one. And that's going to give me one 9 plus 10 X plus five over 10 two X plus one, because I just added the numerators together and 11 I distributed this part. And when you add and subtract like terms 12 that becomes 10 X plus six, 13 over two X plus one, 14 which means that the correct answer is answer choice D.