Answer:
5.6 kg
Step-by-step explanation:
total of 5 packages=48kg
total of 4 packages=42.4kg
weight of 5th package=48kg-42.4kg=5.6kg
Either
y=mx+b
or
y=-1/m*x+k
Well, if the integer is negative it would be positive, if it was positive it would be negative.
Negative x Positive = Negative
Negative x Negative = Positive