Explanation for Question 7 From the Math (No Calc) Section on the 2019 May Sat
So question seven asks us to take this equation and find the solution. 2 So your first instinct might be to just cancel out the X plus five 3 on both sides, but you actually can't do that in this case because there's 4 a one minus before the one over X plus five on the right side. 5 So our first step is we're going to change that one into X plus 6 five, over X plus five. That way we can get everything on top of 7 the extra slide. So that becomes one, 8 or I'm sorry, X plus five plus or minus one 9 minus one 10 over X plus five is equal to two X 11 plus two. I just to share data to get that over X plus five. 12 And if we add and subtract like terms on the right side, 13 this just becomes X plus four. 14 So you can just ignore this bottom part here. So now we can cancel 15 out the X plus five on both sides. Let's just do that. 16 And that gives us two X plus two is equal to X plus four, 17 and then we can just solve for action here. So subtract X from both 18 sides and subtract two from both sides. And that gives us X is 19 equal to two. And so B is the correct answer 20 in this case.