Question

x + y =4 ; x - y = 6

Answer 1

Answer:

x+y=4(1)

x-y=6(2)

from (1)and(2)

2x=10

x=5

x+y=4

5+y=4

y=-1

Answer 2

Answer:

Step-by-step explanation:

x+y=4    

x-y=6⇒x=y+6

substitute in equation 1

y+y+6=4

2y=-2

y=-1

so as x=y+6=-1+6=5

(x,y)=(5,-1)