Question

Use elimination to solve the system of equations.
-2x+y+3z=20
-3x+2y+z=21
3x-2y+3z=-9
A. x = -4, y = -3, z = 3
B. x = 4, y = 3, z = 4
C. x = 4, y = -3, z = 5
D. x = -4, y = 3, z = 3

Answer 1

What terms can you kill off right off the bat?

Answer 2

@Geometry_Hater why do you hate Geometry ??

Answer 3

Because it sucks

Answer 4

i'm guessing 2y?

Answer 5

Yes because they are opposites

Anything else up there like that?

Answer 6

3x