Substitution and Elimination

Substitution - Easier

100

Solve the following system: 

x+y=15 

x=12

(12,3)

200

Solve the following system: 

2x+y=11 

y=7

(4,7)

300

Solve the following system: 

3x+4y=17

y=2

(3,2)

400

Solve the following system: 

2x+10y=14

x=-3

(-3,2)

500

Solve the following system:

-3x+6y=-3

y=1

(3,1)

Substitution - Harder

100

Solve for y:

x + y =22

x = 2y + 1

y = 7

200

Solve for y:

2x + 3y = 21

x = y + 1

y = 5

300

Find the solution by substitution:

4x + 7y = 19

y = x + 9

(4,11)

400

Find the solution by substitution: 

2y – 4x = 14 

y = 6x + 11

(1,17)

500

Find the solution using substitution: 

x = 2y – 1 

3x – 2y = -3

(-1,0)

Elimination - Easier

100

Solve for y: 

x + y=10 

-x+2y=5

y=5

200

Solve for x using elimination: 

2x–y =17 

x–y =10

x=7

300

Solve for x using elimination:

x−y=11

2x+y=19

x=10

400

Solve for y using elimination: 

–x+9y=–5 

x–5y=1

y=-1

500

4x + y= 28

2x - y = -4

y=4

Elimination -Harder

100

Find the solution using elimination:

x + y = 8

x - y = 2

(5,3)

200

Find the solution:

2x + 2y = 20

3x - 2y = 10

(6, 4)

300

Find the solution using elimination: 

–2x + y = 10 

4x – y = –14

(-2,6)

400

Find the solution using elimination: 

–7x – y = 13 

8x + y = –14

(-1,-6)

500

Solve the following system using elimination:

7x + 2y = 24

8x + 2y = 30

(6,-9)

Both (Mixed Levels)

100

Solve for y:

2x-2y=10

y=2

y=7

200

Solve for x:

x+y=10

x-y=6

y=8

300

Find the solution:

2x - y = 15

y=3

(9,3)

400

Find the solution: 

2x - 3y = 2 

-2x + 5y = 6

(7,4)

500

Find the solution:

3x - y = 5

y = 2x + 4

(1,6)