Question

25 балов!!!
х+8х=180
х=?

Answer 1

х+8х=180
9x=180
x=180/9
x=20

Answer 2

спосибо болшое

Answer 3

няш

Answer 4

Надеюсь,поможет)
9x=180
x=1809
x=20

Answer 5

спосибо болшое няш