GWD 05-23

[best555tw]

+ x y z
d _ _ m
e _ n _
f _ _ _



The figure above shows two entries, indicated by m and n, in an addition table. What is the value of n + m?
(1) d + y = -3
(2) e + z = 12

這題在問什麼
我怎麼一頭霧水

[小紅豆]

這是一張加法表


n=y+e
m=z+d

d+y=3
e+e=12

[val]

我還是不理解　資質努鈍　請多說明 thanks!

[peche]

m+ n = y+e+z+d
so d+y = 3, e+z = 12, m+n = 15

[SELVICHY]

m+ n = y+e+z+d
so d+y = 3, e+z = 12, m+n = 15

應該是9.