Question 1. Solve using linear combination

d-2e=-2
3d+2e=26

Which ordered pair, (d,e), Is the solution to the system of equations?
A) (4,6)
B) (2,10)
C) (8,5)
D) (6,4)

Question 2. Solve using linear combination

3d-e=7
d+e=5

A) There Is no solution
B) There are an infinite number of solutions
C) (3,2)
D) (2,-1)

Question 3. Solve using linear combination.

y+x=-5
y-x=5

What Is the ordered pair? Example (x,y)