Question

6. What must be added to m+n-p to make m-n-p?​

Answer 1

Answer:

-2n

Step-by-step explanation:

m+n_p+x=m+n_p

x=-2n

Answer 2

Answer:

(m+n-p)+(-2n)

=m+n-p-2n (+) × (-)=(-)

=m-n-p