Systems of Linear Equations

Substitution

100

Solve the systems of equations using substitution

x=-3

x - 3y=-15

(-3,4)

200

Solve the systems of equations using substitution:

y = 6x

 2x + 3y=-20

(-1,-6)

300

Solve the systems of equations using substitution:

x=4y

x+2y=12 

(8,2)

400

Use substitution to solve the following system of equations.

y = -2x + 3

8x + 4y =12

infinitely many solutions

Elimination

100

Use ELIMINATION to solve each system of equations.

-3x + 2y = 23

-5x - 2y = 17

(-5, 4)

200

Use ELIMINATION to solve each system of equations.

-4x + 7y =-13

4x - 7y =3

no solution

300

Use ELIMINATION to solve each system of equations.

8x+ 12y = 20

-8x - 12y = -20

infinite solutions

400

Use ELIMINATION to solve each system of equations.

x + y = 4

2x - 5y = 15

(5,-1)