What is the answer for -5a - 12a simplify

Complete the statements about the system of linear equation respresented by the tables the equation respented the left table is

Problem fathi wants to print out a pdf document that is 48 pages long. to save paper, he decides to print on both sides of each sheet and to print two pages on each side of the sheet. how many sheets of paper will he need?

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5