SOLUTION: Blinn College in Bryan has 620 students. The difference between male students and female student is 20. How many female students are there?

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Question 392997: Blinn College in Bryan has 620 students. The difference between male students and female student is 20. How many female students are there?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
b + g = 620,
b - g = 20.
==> 2b = 640 (after adding corresponding sides of the 2 equations)
==> b = 320 ==> g = 300, the number of female students.