Solve a System of Equations Using Elimination

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

Solve by elimination:
3x+7y=23

-3x-7y=-17

• No solution

• ARN

• (-3,3)

• (3,3)

Solve by elimination
-6x+y= -2
-3x-6y= 12

• (2,0)

• no solution 

• (0,-2)

• infinite solutions 

What is the first step in solving a system of equations by elimination?

• Get both equations in standard form and line up the like terms.

• Get both equations in slope-intercept form.

• Get both equations equal to zero.

• Put the x terms first.

Solve using elimination.

• (4,5)

• (3,4)

• (5,4)

Solve using Elimination.

• (0,0)

• (-8,-8)

• (-8,0)

• (0,-8)

solve using elimination

• (0,2)

• (1,3)

• (0,3)

• (2,1)

Solve the system of equations using elimination.

• f = -2, g = 1

• f = -1, g = 2

• f = 1, g = -2

• f = 2, g = -1

Solve the following system of equations using the elimination method:

• (-2, 1)

• no solutions

• (-2, 0)

• (-1, -3)

What is the solution?

• (1, -2)

• (-2, 1)

• (-4, 1)

• (2, 1)