Let x be the number of birds on the fence.

We know that 10 + 2*x = 50.

Subtracting 10 from both sides, we get 2*x = 50 - 10 = 40

Dividing both sides by 2, we get x = 20

# Answer

20
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Ten more than twice the number of birds on the fence is 50. How many birds are on the fence?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
20
Ten more than twice the number of birds on the fence is 50. How many birds are on the fence?
train