23-3(b+1)+5(6b-7)-7(3b-1)=0

Question

23-3(b+1)+5(6b-7)-7(3b-1)=0

Answer 1

23 - 3b - 3 + 30b - 35 - 21b + 7 = 0
-3b + 30b - 21b = - 23 + 3 + 35 - 7
6b = 8
b = 8 : 6
b = 1цел.1/3