Answer:
c
Step-by-step explanation:
got it right on edge 2020 hope this helps<3
C) Ken added 19 to both sides of the equation rather than subtracting 19.
I Just Took The Test On Edge
when .
Given:
To find: Value of , substituting the known value of
We have,
Putting in equation , we get
Hence, the value of is , when the value of is .