So let's set the variables:
Nate: x
Bryan: x + 150
Cameron 2(x + 150)
If the total amount of papers delivered was 1450, we can then set all of this equal to 1450 and solve for x:
[tex] x+ (x+150)+2(x+150)=1450 [/tex]
[tex] x+(x+150)+2x +300=1450 [/tex]
[tex] 4x+450=1450 [/tex]
[tex] 4x=1000 [/tex]
[tex] x=250 [/tex]
So now we can solve for how many papers each child delivered:
Nate: 250
Bryan: (x + 150) = 250 + 150 = 400
Cameron: 2(x + 150) = 2(250 + 150) = 2(400) = 800