5x + y = 2
4x + y = 4

use the linear combination method to solve

By "linear combination" I'm assuming you mean the elimination method, which is fairly simple.

We can add, or subtract, one equation from the other to single out a specific value.

In this case, we can subtract the second equation from the first to isolate x.

(5x + y = 2) - (4x + y = 4)

Distribute a -1 to each term in the second equation.

-4x - y = -4

Add values vertically.

Now that we have a value for x, we can solve for y.

4(-2) + y = 4

-8 + y = 4

Add 8 to both sides.

y = 12

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 "

answer is the third choice:

3x^5+4x^4+x^3+2x^2-10x-7=0

step-by-step explanation: