Question

aa-b=4, то сколько будет а+bb?

Answer 1

a/(a-b) = 4
a = 4(a-b)
4b = 3a
b = 3a/4

(a+b)/b = (a+ 3a/4)/(3a/4) = 7/4 : 3/4 = 7/3 = 2 1/3