If we add straight down, which variable will be eliminated?

4x + 8y = 20

-4x + 2y = -30

Solve by elimination:

-9x-4y=-20

5x+4y=4

Solve by elimination:

4x+4y=4

3x+4y=10

Solve by elimination

4x-6y= -6

-2x-12y= -12

Solve the system by elimination.

−6x + 6y = 0

9x − 8y = 4

Solve the system by elimination.

-7x+6y=26

-4x+10y=28

When an equation results in something like 0=2, is this a true or false statement?

When a equation results in a false statement like 2=0, what is the solution?

When an equation results in something like 0=0, is this a true or false statement?

When a equation results in a true statement like 0=0, what is the solution?

Solve using elimination.

-4x - 6y = 6

4x + 6y = -4

Solve using elimination.

−4x − 4y = 0

4x + 4y = 0