And because of that, at some point they got to an algebra class and they might have been a little bit shaky on some of the pre-algebra, and because of that, they thought they didn't have the math gene.
Daher kamen sie irgendwann zum Algebra-Unterricht und waren vielleicht etwas unsicher in den Grundlagen und glaubten deshalb, nicht das Mathe-Gen zu haben.