Question

Simplify : ( x-1 + y-1 ) -1 .​

Answer 1

Answer:

( x-1 + y-1 ) -1

= (x + y -2) -1

= (x + y -2 -1)

= x + y -3

x + y =3

Answer 2

Answer:

(x-1 + y-1)-1

-x+1-y+1

-x-y+2

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