Question

If X + Y =8 and X - Y = 2 . then​

Answer 1

Answer:

x+y=8 (1)Subtracting eq(2) from eq(1)

x-y=2 (2)

(-)(+) (-)

2y=6

y=6/2

y=3

Substituting y=3 in (1)

x+y=8

x+3=8

x=8-3

x=5

Let's verify in(2)

x-y=2

5-3=2

2=2

Since,LHS=RHS

Hence the given solution,

x=5

y=3

Answer 2

Answer:

x = 5, y = 3

Step-by-step explanation:

given that,

x+y=8.....equation (i)

x-y=2......equation (ii)

we can also write equation (i) as

x=8-y

now, we can substitute the value of x in equation (ii) i. e. 8-y-y=2

=> 8-2y=2

=> -2y=2-8

=>-2y= -6

=> y= 3

now, substitute the value of y in x=8-y

x=8-3

x=5

therefore, x=5

y=3