We know Eric has 4 stars and Chad has twice that amount, so Chad has 4 x 2 = 8 stars.

Then Chad sells 2 of them to Jeff, so Chad has 8 – 2 = <<8-2=6>>6 stars.

Altogether, Eric has 4 + Chad has 6 + Jeff has 6 = <<4+6+6=16>>16 stars.

# Answer

16
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Eric has 4 ninja throwing stars. His friend Chad has twice as many. Then Jeff bought 2 ninja stars from Chad. Jeff now has 6 throwing stars. How many ninja throwing stars do they have altogether?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
16
Eric has 4 ninja throwing stars. His friend Chad has twice as many. Then Jeff bought 2 ninja stars from Chad. Jeff now has 6 throwing stars. How many ninja throwing stars do they have altogether?
train