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| [td] y [/td][td] z [/td] [td] [/td][tr][td] d [/td][/tr][td] [/td][td] [/td][td] m [/td][td] [/td][tr][td] e [/td][/tr][td] [/td][td] n [/td][td] [/td][td] [/td][tr][td] f [/td][/tr][td] [/td][td] [/td][td] [/td][td] [/td][tr][td] [/td][td] [/td][td] [/td][td] [/td][td] [/td][/tr] 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
The answer is C
how to calculate? Thanks |
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