Susan's math teacher assigned x homework problems on Monday. On Tuesday, she assigned 14 more problems. Over the two days, a total of 22 homework problems were assigned. Which equation could be used to find x, the number of problems assigned on Monday?

A.
22 + x = 14
B.
x + 14 = 22
C.
x - 14 = 22
D.
14x = 22