Respuesta :
hi
X - (-Z) = X + -1* -Z
= X + Z
If X = -8 and Z = -11
so X+Z = - 8 + (-11)
= -8-11
= -19
first substitute the x and z values with their corresponding numbers:
-8-(-11)
then distribute the -(-11):
-8+11
then subtract 8 from 11 to get 3:
11-8=3
-8-(-11)
then distribute the -(-11):
-8+11
then subtract 8 from 11 to get 3:
11-8=3
