X - y = 4

x + y = 2

What is the solution of the system?

(3, -1)

(3, 1)

(-1, 3)

X=3,Y=-1

Step-by-step explanation:

This question is based on elimination method

X-Y=4...(1)

X+Y=2...(2)

Add (1) and (2)

2x=6

Make x the subject of formula by dividing both sides by 2

X=3

Let's substitute the value of x into (1)

3-Y=4

Substrate 3 from both sides

-Y=1

Divide both sides by-

Y=-1

Therefore x is 3 and Y is -1