Question

from eq. (2) y should be -1-x how it became x+1 please explain ​

Answer 1

Answer:

x-y=-1

X+1=Y

that's it yrr when the numbers go on the other side of the equal sign then the sign of the numbers is changed

Answer 2

Answer:

In equation 2,it is given x-y=-1

When we shift x other side, we get

-y=-1-x

Now we take negative sign(-) common from right side we get ;

-y=-(1+x)

Negative sign from both sides will be canceled so, y=1+x