6. x/4 + 16 > 34 x/4 > 34 - 16 x/4 > 18 x > 18×4 x > 72 So the answer is C. x > 72
7. x -12 = 40 x=40+12 x=52
Now we try them all: A. x/2 = 14 x=14×2 x=28 This isn't the answer! B. x+12=40 x=40-12 x= 28 This isn't the answer either! C. 12-x=40 -x=40-12 -x= 28 /×(-1) x=-28 This isn't the answer! D. x/4 = 13 x=13×4 x=52 SO THE ANSWER IS D.