Question

x+y=3 x+y=3 x - y =4​

Answer 1

Answer:

x + y = 3

x- y = 4

Again

On adding we get

2x = 7

Therefore x = 7/2

and on putting value of x in equation we get

7/2 - y = 4

7/2-4= y

-1/2 = y

Answer 2

Answer: x = 7/2, y = -1/2

Step-by-step explanation:

I suppose you want to find the values of x and y. (You can report me if it is not so.)

x + y = 3

x = 3 - y

x - y = 4

Put the value of x obtained before in the above equation.

x - y = 4

(3 - y) - y = 4

3 - 2y = 4

3 - 4 = 2y

-1 = 2y

2y = -1

y = -1/2

Now, put the value of y in the first equation to get the value of x.

x + y = 3

x + (-1/2) = 3

x - 1/2 = 3

x = 3 + 1/2

x = 7/2