What is value in m+n in addition table below? I am completely clueless here.
(+) x y z
4 1 -5 m
e 7 n 10
f 2 -4 5
(+) x y z
4 1 -5 m
e 7 n 10
f 2 -4 5
- y + 4 = -5 .......... (1)
z + 4 = m .......... (2)
y + e = n .......... (3)
z + e = 10 .......... (4)
And, adding and (2) and (3), (m + n) = z + y + e + 4 = 5
Hence, the value of (m + n) is 5.
