Answer:
3+2i
Step-by-step explanation:
Answer:
B represents 9. The opposite would be -9
Step-by-step explanation:
Answer:

Step-by-step explanation:
-This is an addition/subtraction problem.
#We subtract the sum of the first two expression from the third expression:

Hence, the expression
must be added to the first two.
11)
3x = 180
x = 60
12)
6x + 18 = 180
6x = 162
x = 27