( 7-10х) - ( 8-8х) + ( 10х+6) = -8
(2х+3) + (3х+4) + (5х+5) = 12 - 7х
(5х - 3) + (7х - 4) = 8 - (15 - 11х) 
помогите пожалуйста!!

 Do the crossword in the Workbook and check your answer.

1.    Artos fell asleep by the .... (4 буквы)

2.    Artos' tribe are the people of the .... (4 буквы)
3.    Some Celts went to the... because it was not far away. (4 буквы)
4.    The person who gave Artos good advice was a Christian ... (6 букв)
5.    The name of the land of Picts and Scots today is ... . (8 букв)
6.    The table of King Arthur and his knights was .... (5 букв)
7.    The special meeting place was by the ....(8 букв)

Может ли окружнасть иметь два диаметра разной длины?