Systems by Elimination Adding Easy

Solve using elimination.

4x-2y=16

5x+2y=11

• (3,-2)

• (1,4)

• no solution

• infinitely many solutions

Solve using elimination.

x+y=3

-x-10y=-30

• (0,3)

• (0,-3)

• no solution

• infinitely many solution

Solve using elimination.

-10x-9y=9

10x+7y=-7

• (0,1)

• (0,-1)

• no solution

• infinitely many solutions

Solve using elimination.

-2x+2y=0

2x+6y=-16

• (-2,-9)

• (-2,-2)

• no solution

• infinitely many solutions

What do you do in #6?

• y

• Divide by

• -12

• Eliminate

• x

• Solve for...

Solve by elimination:

-9x-4y=-20

5x+4y=4

• (-4,4)

• (4,4)

• (4,-4)

• (-4,-4)

Solve the system of equations
  4x+8y=20
-4x+2y=-30

• (-7,1)

• (2,-5)

• (-2,5)

• (7,-1)

• (3, 3)

• (1, 5)

• (1, 3)

• (7, -1)

• (5, 14)

• (4, 5)

• (5, 4)

• (14, 5)