math
posted by sarah .
Sam and billy are to split $35 in the ratio 4:3. how much will billy get? cab you please explain the answer to me!

Let S = what Sam gets and B = what Billy gets.
S/B = 4/3
S + B = 35
(4/3 B) + B = 7/3 B = 35
B/3 = 5
Complete the solutioon.