Question

the solution of the system of the equation x+y = 4 and x-y = 6
(1) (1.1)
(2) (0,0)
(3) (3,3)
(4) all of these​

Answer 1

Answer:

(5, -1)

Step-by-step explanation:

Add both equations

(x+y)+(x-y)=4+6

⇒ 2x=10

⇒ x=5

Putting this value in one of the equations

5+y=4

⇒ y=4-5

⇒ y=(-1)