Simplify $12+6$ in $mod 4$

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Odinaka_OTyro

Asked: January 7, 20212021-01-07T15:11:03+00:00 2021-01-07T15:11:03+00:00In: Arithmetic, Numbers and Combinatorics

Simplify $12+6$ in $mod 4$

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Simplify $12+6$ in $mod 4$

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Sengemegz · Accepted Answer · 2021-01-09T20:54:40+00:00

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Sengemegz Moderator

2021-01-09T20:54:40+00:00Added an answer on January 9, 2021 at 8:54 pm

$12+6$ in $mod 4$
$\Rightarrow 12+6=18$ in $mod 4$
next look for the number that will multiple 4 to give 18 or a number close to 18 but not more than 18
$\Rightarrow 4 \times 4=16$
What must be added to 16 to make it 18? is 2
$\therefore 12+6\equiv 2$ in $mod 4$

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Simplify $12+6$ in $mod 4$