A farm has 5 less than 9 times the amount of hens as roosters.  If there are 75 total chickens, how many hens are there?
Let x represent the number of roosters.
Number of hens:9x-5.
Total:9x-5+x=75
10x-5=75
10x=80
x=
<gadget id="calculator">8</gadget>
<output>8</output>
8.
Number of hens: 9(8)-5=67.

<result>67</result>