. The math department chairwoman has to select one math teacher to accompany her to a math conference in Las Vegas, which she's very excited about. Which of the following is a fair method for selecting the teacher to go with her on the trip?

A. Select the teacher who grew up near Las Vegas.
B. Ask the math department teachers to vote on who gets to go.
C. Select the teacher who has been in the department the most number of years.
D. Assign a number to each teacher who would like to go and draw a number from a bag.

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.