Question

(i) x + y = 14.....i
x - y= 4 .......ii

from equation (ii)
x-y=4
x=4+y

substitute in equation (i)
x+y=14
(4+y)+y=14
4+y+y=14
2y=14-4
2y=10
y=10/2
y=5
put the value y=5 in equation i
x-y=4
x-5=4
x=4+5
x=9
Answer x=9,y=5​

Answer 1

Answer:

x=9 ; y=5

Step-by-step explanation:

x+y=14  → (1)             x-y=4 → (2)

Add (1) and (2)

x+y+x-y=14+4

2x=18

 ∴x=9

Subtract (2) from (1)

x+y-(x-y)=14-4

2y=10

∴y=5

I don't know why you have sent answer too but still I have solved this by another method called elimination.