Interactive Study Card

Core Mathematics With Explanation
Created 13 days ago

If {x:2≤x≤18;x∈integer} \lbrace x : 2 \leq x \leq 18; x \in integer \rbrace and 7+x=4(mod9)7 + x = 4 \pmod{9}, find the highest value of x. x.

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Answer

A

2

B

5

C

15

D

18

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