A jar contains 9 blue pens, 21 black pens, and 6 red pens. Four blue pens are removed and then seven black pens are removed. How many pens are left in the jar? Let's think step by step and output the final answer after "####".
user
There are 9-4 = <<9-4=5>>5 blue pens left in the jar.
There are 21-7 = <<21-7=14>>14 black pens left in the jar.
There are 5+14+6 = <<5+14+6=25>>25 pens left in the jar.
#### 25
A jar contains 9 blue pens, 21 black pens, and 6 red pens. Four blue pens are removed and then seven black pens are removed. How many pens are left in the jar?
train