A theater having 1200 seats, all of which are either balcony or orchestra seats, has 250 fewer balcony seats than orchestra seats. How many balcony seats ar

Question

I need advice on how to do this problem.

Answer 1

b + o = 1200

o = b + 250 (or b = o - 250)

 

Since o = something, we can take that something and substitute it anywhere for o.

 

b + (b + 250) = 1200

2b + 250 = 1200

2b = 950

b = 475 seats