-4e - 2g = - 12
4e + 8g = -24
Poi

Explanation:

-4e-2g=-12

-2g=-12+4e

g=6-2e

i think that's the answer but if anything just use photo math

The main idea of this paragraph is that, without cells, there would not be any organism. As it is said, according to biologists there are five levels of cell organization in organisms, which, working together as a colony, can form from tissue to a whole body system able to live by itself.