On the night of 8 may 1992, armenian gangs carried out the operation ended with the occupation of shusha. occupation of shusha, has completed the occupation of nagorno-karabakh. during the occupation, killed 200 people, more than 600 were wounded, 150 became invalids, 552 child became orphans, more than 20 thousand people were displaced. the occupation had destroyed more than 600 historical monuments, 7 preschool institutions, 22 secondary schools, economic and cultural-educational technical schools, 8 culture houses, 14 clubs, 20 libraries, 2 cinemas, 3 museums, tourist base, factory of eastern musical instruments and hundreds of. cultural monuments.
3+7=10 частей суммы заплатили
80:10=8грн размер одной части
3*8=24грн стоит учебник
7*8=56грн стоит художественная книга
можно через Х
х-составляет одна часть
3х+7х=80
10х=80
х=80:10
х=8грн одна часть
3*8=24грн стоит учебник
7*8=56грн стоит художественная книга