AnswerA is the numbers that are in the cost colom and for B it is the 3rd one (colom)
Step-by-step explanation:
Answer:
a=2d+3
b=3d-12
c=a+b so
c=2d+3+3d-12
c=5d-9
and?
What's this? I don't understand.
5x and -7x
they both end in the variable "x"
