Answer:
i think its b
Step-by-step explanation:
I believe it would be b= -264
(I’m not 100% sure though so you might wanna check)
There are m any examples of equations that equal 31. Here are a few:
17 + 14
30 + 1
60 - 29
I like this one though (its 2 step)
(15 x 2) + 1
Hope this helped :)