Question

find four solution at the equation:-y=x-4

Answer 1

Step-by-step explanation:

1) x=y+4

2)y=x-4

3)y-x=4

4)x+y=-4

Answer 2

Answer:

-y=x-4

4=x+y

              put x=1

4=1+y

4-1=y

3=y

y=3

            then y=0

x+y=4

x+0=4

x=4

               then x=0

0+y=4

y=4

                then y=2

x+2=4

x=4-2

x=2

Step-by-step explanation:

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