A family gathered 20 small sea shells from the beach brining the total number of small seashells in their collection to 41.

Which equation can be used to find, x, the number of small sea shells in the collection before the 20 were added


A:. 20_x =41

B:. x- 21 =41

C:. x + 20 =41

D:. 20x=41





HELPPPP
EXCEPT PT TH 20_x UNDER EACHOTHER PLS​