Could any one explain this geometry question. the final answer is supposed to be 63 but i'm not sure

A= 5 + 2 = 7
You get this by doing the inverse operation so minus 2 by 2 and 7 then you get your answer so it should look like this
X+2= 7
-2. -2
———
X= 5

B: 15-4=11
+4. +4
————-
X= 15

C: 4(3) = 12

D: 50/5 = 10

Btw this should be easy, try doing it on to your own now.