Hi, thank you for posting your question here at Brainly. I could easily help you with this simple Algebra problem particularly system of equations. There are two unknowns (x and y) and two equations, hence this can be solved.
-4y - 11x = 36
-36 - 11x = 4y
y = (-36 - 11x)/4 <-- equation 1
20 = -10x - 10 y
20+10x = -10y
y = (20+10x)/-10 <--- equation 2
Equating both equations, you could determine x. From there, you could also determine y.
x = -4
y = 2
