Question

(X-y-z)+(X+y+z)
Can someone please simplify this and tell me how it's done

Answer 1

(x-y-z)+(x+y+z)

=) x-y-z+x+y+z

=) x+x-y+y-z+z

=) 2x

Answer 2

( x - y - z ) + (x + y + z )

x - y - z + x + y + z

x + x

2x Ans