What is the theme of the school days of an indian girl by Zitkala-sa

School days of Zitkala-Sa are hate and isolation, as she felt like an outsider in school among all those white people.

Explanation:

She is sharing her experience with white Americans and how hard she has tried to fit in. She is a representative of her people that were tortured trough history by white Americans. She had to pass a long path to be part of a different culture.

substitute y = 2x - 4 to x + 2y = 12:

x + 2(2x - 4) = 12     use distributive property

x + (2)(2x) + () = 12

x + 4x - 8 = 12     add 8 to both sides

5x = 20     divide both sides by 5

x = 4

put the value of x to the first equation:

y = 2(4) - 4

y = 8 - 4

y = 4