( SOMEONE ANSWER PLEASE ) [ I WILL GIVE BRAINLIEST ] to the person who can explain as to how to do an equation like this. I need an explanation because I want to understand the concept. How do you do an equation like this? ( LOOK AT IMAGE PLEASE )

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

it’s the first one your welcome