algebra
posted by ulises .
the difference between two numbers is 16.five times the smaller is the same as 8 less than twice the larger.find the numbers

b is big, s is small
bs = 16
so
s = (b16)
and also
5 s = 2 b 8
so
5(b16) = 2 b  8
5 b  80 = 2 b  8
3 b = 72
b = 24
then go back and find s
s = 2416 = 8 
What two numbers should be placed in the blanks below so that each pair of consecutive numbers has the same difference?
13, ____, ____, 49