Answer:
x= -9
y=7
z= -7
x= -108
y= [tex]\frac{4}{3}[/tex]
z= [tex]\frac{32}{3}[/tex]
For the rice one:
[tex]\frac{p}{4}[/tex] + 4 = [tex]\frac{16 + p}{4}[/tex]
[tex]\frac{p}{4}[/tex] - 4 = [tex]\frac{-16+p}{4}[/tex]
4p - 4 = 4(p-1)
4p + 4 = 4 (p + 1)
For nine bags of rice:
I believe it would be 24 people but im not 100% sure
