Nobody knows this one :(
Find x
A) 9
B)-9
C)6
D)-6

Answer:
-9
Step-by-step explanation:
164-43=121
121-139=-18
-18/2=-9
Answer:
-9
Step-by-step explanation:
164= x-43
164-43=x
x=121
164-43=121
121-139=18
-18/2= -9