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Допоможи Андрійкові дізнатися рік заснування міста Житомира. Рік заснування міста Житомира містить 8 сотень, стільки само десятків, а одиниць - на 4 менше, ніж сотень.

$1$ . Допоможи Андрійкові дізнатися рік заснування міста Житомира. Рік заснування міста Житомира містить $8$ сотень, стільки само десятків, а одиниць - на $4$ менше, ніж сотень.

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Write equations of cosine functions using properties

Full solution

Q.

1

. Допоможи Андрійкові дізнатися рік заснування міста Житомира. Рік заснування міста Житомира містить

8

сотень, стільки само десятків, а одиниць - на

4

менше, ніж сотень.

Denote Digits: Let's denote the hundreds digit as $H$ , the tens digit as $T$ , and the units digit as $U$ . According to the problem, $H = 8$ , $T$ is the same as $H$ , so $T = 8$ , and $U$ is $4$ less than $H$ , so $T$ $0$ .
Calculate U: Since $H = 8$ , we can calculate $U$ as $U = 8 - 4 = 4$ .
Final Year: Now we have all the digits for the founding year of Zhytomyr: $H = 8$ , $T = 8$ , and $U = 4$ . Therefore, the year is $884$ .

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