Question

in the pair of linear equations x+y=9&x-y=1 the values of x and y are__________​

Answer 1

Answer:

x=4 y=5

Step-by-step explanation:

x+y=9_1

x-y=1 _2

therefore, x=9-y _3

Substituting value of x from eq 3 to eq 2 we get,

9-y-y=1

9-2y=1

2y=9+1

y=10/2

y=5

substituting value of y in eq 1 we get

x+5=9

thus, x=4

Hope it helped you.

Answer 2

Answer-

X= 5 , Y = 4.

$\sf{Given \: equations \: are - }$

x + y = 9

x - y = 1

$\sf{adding \: both \: equations}$

$\sf{x + y + x - y = 9 + 1}$

$\bf{therefore}$

X= 5

Putting x= 5 in given equation,

y = 4