Question

Equations in 2 variables... x+y=0;x-y=2​

Answer 1

Answer:

x= 1,y = -1

Step-by-step explanation:

By adding both equation, we can find x

Answer 2

Answer:

x+y=0

x=-y

substituting value of x in x-y=2

x-y=2

-y-y=2

-2y=2

y=-1

therefore,

x=-(-1)

x=1