You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.
The answer is 49.
10
1/2 + 3/8 = 7/8.
It is: 37+(-2)+(-65)+(-8) = -38
38+37+11+8=94
10x3+8=80-60+? 30+8=20+? 38=20+? 38-20=? 18=? The answer is 18.
30 + 8
8(3) - 16 = 324 - 16 = 38 = 3==========obviously not
1/4 = 3/12 1/3 = 4/12 1/2 = 6/12 2/3 = 8/12 3/4 = 9/12 2/3 = 8/12 Setting it as a common denominator you can now add the top numbers and then simplify your answer. 3 + 4 + 6 + 8 + 9 + 8 = 38. 38 divided by 12 is your answer. (3 and 1/6th)
6*8-6+3-7 =48-6+3-7 =48-3-7 =38
38*4 + 3 + 7 - 3x = 162 - 3x
8 + 8 + 6 + 3 + 4 + 3 = 32
r=8