Question

What are the solutions of the following system?

X+y = 25
| 2x+y= -5
(0,-5) and (-5,5)
(0,-5) and (5, -15)
(0, -5) and (-4, 3)
(0, -5) and (4, -13)

Answer 1

Explanation:

y=25-x sub in 2nd

2x+25-x=-5

x=-5-25

x=-30

Now y=25+30

y=55