Answer:
-8
Step-by-step explanation:
if you add negitive 8 to 8 then the sum will be 0
when you add a negative number your basically subtracting its absolute value.
5
it's not necessary to round to the nearest tenth just simply half 10
try x= 4z/y
t h e r e c i p r i c l e o f - 2 i s 2
