Simplify $15+9$ in $mod 11$

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Odinaka_OTyro

Asked: January 7, 20212021-01-07T15:17:16+00:00 2021-01-07T15:17:16+00:00In: Arithmetic, Numbers and Combinatorics

Simplify $15+9$ in $mod 11$

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Simplify $15+9$ in $mod 11$

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Sengemegz · Accepted Answer · 2021-01-09T20:47:44+00:00

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Sengemegz Moderator

2021-01-09T20:47:44+00:00Added an answer on January 9, 2021 at 8:47 pm

$15+9$ in $mod 11$
$\Rightarrow 15+9=24$ in $mod 11$
next look for the number that will multiple 11 to give 24 or a number close to 24 but not more than 24
$\Rightarrow 11 \times 2=22$
What must be added to 22 to make it 24? is 2
$\therefore 15+9\equiv 2$ in $mod 11$

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