Question

x-y = 2= 2 and x + y = 4​

Answer 1

Let x-y =2 be first equation

And x+y=4 be second equation


Now equation2- equation1


We get

(x+y) - ( x-y) = 4-2

x+y-x+y = 2

x and negative x gets cancelled

We get

2y = 2

y = 1

Substitute this value in equation1 we get value of x


Which is 1



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Answer 2

Answer:

x-y=2------(i)

x+y=4-----(ii)

Step-by-step explanation:

From (i), we get,

x=2+y-----(iii)

On substituting the value of x from (iii) in equation (ii), we get,

2+y+y=4

=> 2+2y=4

=> 2y=2

So, y=1

Also, x=2+(1)=3 [from (iii)]

Hope it helps you:)