Session Code: alg2 0502 session time: 4:30pm session topic: expressions instructor: mrs vega 1. it is important to follow the ____ _ ___ when simplifying expressions. simplify the expressions: 2.) {49 [81 -x(9x - 14)]} 3.) [81 - x(9x 2)] 25 - (3x-1) 4.) {[3^2 - a (5a-7)] 36 - 5 }