Solving Simultaneous Equations Form 3L

Solve:

3x - y = 11

x + y = 5

• x = 4

  y = 1

• x = 4

  y = -1

• x = -4

  y = 1

• x = -4

  y = -1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve:

3x + 5y = 4

4x - 5y = -18

• x = -2

  y = 2

• x = -2

  y = -2

• x = 2

  y = -2

• x = 2

  y = 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve:

2x + 3y = 5

x + 3y = 7

• x = -2

  y = 3

• x = -2

  y = -3

• x = 2

  y = 3

• x = 2

  y = -3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

 Find the solution of the given simultaneous equation. 
 $3x+2y=3$  
 $5x+3y=4$  

• (-1,3)

• (17, -12)

•  $\left(\frac{1}{2},\frac{3}{4}\right)$  

• (-6, 3)

• no solution

Two pencils and a ruler cost 49 cents in total. One pencil and two rulers cost 62 cents in total. Find the cost of each item.

• pencil: 13 cents

  ruler: 23 cents

• pencil: 15 cents

  ruler: 23.50 cents

• pencil: 12 cents

  ruler: 25 cents

• pencil: 18 cents

  ruler: 26 cents

Tags

CCSS.8.EE.C.8C

Solve:

3x + 5y = 4

4x - 5y = -18

• x = -2

  y = 2

• x = -2

  y = -2

• x = 2

  y = -2

• x = 2

  y = 2

Solve the following simultaneous equations:

2x + 3y = 17

4x + y = 9

• x = 1

  y = 5

• x = -1

  y = 5

• x = 1

  y = -5

• x = -1

  y = -5

Solve the following simultaneous equations:

3x + 2y = 20

2x + y = 1

• x = 2

  y = 7

• x = -2

  y = 7

• x = 2

  y = -7

• x = -2

  y = -7

Solve the following simultaneous equations:

5x + y = 22

3x + 3y = 18

• x = 4

  y = 2

• x = -4

  y = 2

• x = 4

  y = -2

• x = -4

  y = -2

Solve the following simultaneous equations:

7x - 4y = 20

3x + 3y = 18

• x = 4

  y = 2

• x = -4

  y = 2

• x = 4

  y = -2

• x = -4

  y = -2