Question

What is the solution to this system of linear equations?

x + y = 4

x − y = 6

(4,6)
(6,4)
(5,-1)
(-1,5)

Answer 1

x + y = 4
x - y = 6
------------add
2x = 10
x = 10/2
x = 5

x + y = 4
5 + y = 4
y = 4 - 5
y = -1

solution is (5,-1)

Answer 2

Answer:

5,-1

Step-by-step explanation:

just took test on edge 2020