Question

two of the top grossing concert tours were by a jazz band and a rock band. Together the two tours visited 177 cities. The jazz band visited 93 cities morr than thr rock band. How many cities did the jazz band visit? How many cities did the rock band visit?

Answer 1

You can answer this with a system of equations.
j = # of cities jazz band visited
r = # of cities rock band visited
j + r = 177
j = 93 + r
Substitution
93 + r + r = 177
2r = 84
r = 42
j = 135