Solve each system by elimination? 3) -3x + y - 6z = 10 -3x – 3y - 32 = 15
-x - 5y - 2z = 14
A) (-2, -1, -2)
B) (-2,-2, -1)
C) (6, -5,3)
D) (6, 3,-5)

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Quick graph the line for y+2=32(x+4) on the coordinate plane. does anyone know the cordinates will mark brainliest.

Which situation is an example of an observational study?