Does anyone know the questions and answers that my teacher going to ask me for algebra 1 6.07 polynomials operations discussion based assessment questions does anyone know the answers and questions to the assignment

About a week ago this question was not answered. And today, I'm asking if you got your answers and if so, pass the answers. -#- plz?

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18