203k views
9 votes
Let P be a point between points S and T

If ST = 21, SP = 3b – 11, and PT = b + 4, solve for b.

1 Answer

8 votes
(3b - 11) + (b+4) = 21
4b - 7 = 21
4b = 28
b = 7
User HelpASisterOut
by
3.4k points