Solving Systems of Equations with Elimination

Elimination A

100

2x + 3y = -12 

-4x - 3y = 30

(-9,2)

200

What is the Second step in solving system of equation by elimination method?

Determine Which Variable to eliminate

300

-x + y = -1 

x + y = -3

(-1,-2)

400

-x - y = -10

 2x + y = 18

(8,2)

500

-5x + 5y = 20 

2x -5y = -38

(6,10)

Elimination B

100

-3x + 5y = -18

 4x + 5y = -11

(1,-3)

200

-3x + 5y = -8

 x + 5y = -24

(-4,-4)

300

5x + 4y = 20 

5x + y = 20

(4,0)

400

3x + 5y = 9 

3x + y = -15

(-7,6)

500

-2x + y = -8 

3y + -2x = -24

(0,-8)

Elimination C

100

What Is Intersect?

the point or points where the graphs of the equations meet, representing the solution(s) that satisfy all equations simultaneously.

200

2x + y = 21

 4x - 3y = 7

(7,7)

300

x + 2y = 2

 2x - 3y = 4

(2,0)

400

What Is the first step when solving system of equation using elimination method.

ensure both equations are in standard form 

(Ax + By = C)

500

5y - x = 35 

3x + 5y = 75

(10,9)

Elimination D

100

Do like a Frog!!

..

200

x + 4y = 9 

-2x + 3y = -18

(9,0)

300

x + y = 1

 4x - 5y = 4

(1,0)

400

4x - y = -24 

5x + 3y = 4

(-4, 8)

500

5y - x = 25 

4x - 5y = -10

(5,6)

Substitution

100

What is the Third step in solving system of equation by elimination method?

Add or subtract the equation. 

200

-3x = 4y - 47

 x = -5y + 34

(9,5)

300

  y - 3x = - 6

 2y+2x = 4

(2,0)

400

x -2y= - 14 

-2x + 5y = 37

(4,9)

500

5x - 4y= 4y 

 x +2y=  18

(8,5)