A textbook store sold a combined total of 405 math and chemistry textbooks in a week. The number of math textbooks sold was two times the number of chemistry textbooks sold. How many textbooks of each type were sold?

Respuesta :

Hi!

You can think of this question like the photos attached above.

Also, a friendly reminder (I am sure that you know this already though) that variables cannot be capital letters (only lowercase). I used to make (and still make) this mistake a lot when writing equations, so I just thought that this reminder might be helpful.

Hope this helps! Best of luck!
Ver imagen cherry2blossom
Ver imagen cherry2blossom
Ver imagen cherry2blossom