Question

me say me the answer by step ​

Answer 1

Answer:

1.x+y=6;x-y=3

Step-by-step explanation:

x+y=6

=>x=6-y -------(i)

x-y=3

=>x=3+y ---------(ii)

.

. . from (i)and(ii) 6-y=3+y

=>6-3=y+y

=>3 =2y

=>3/2=y

=>y = 3/2 -----(iii)

now,

x=6-y

=6-3/2 -------from(iii)

=12-3/2

= 9/2

.

. . ans. x=9/2 and y=3/2.

2.x+y=5;x-y=3

sln. x+y=5

=>x =5-y -----(i)

x-y=3

=3+y -----(ii)

now,

from (i) and (ii)

5-y =3+y

=>5-3=y+y

=>2=2y

=>2/2=y

=>y =1

Then,x=5-y

=>x=5-1

=>x=4

.

. . x=4 and y=1 ans.