Solving Systems of Equations Using Elimination

4x+8y=20
-4x+2y=-30

• (-7,1)
• (2,-5)
• (-2,5)
• (7,-1)

Tags

CCSS.HSA.REI.C.6

It costs $19.00 to purchase 2 pounds of coffee and 3 pounds of tea while it is $41.50 to purchase 5 pounds of coffee and 6 pounds of tea. How much per pound is the price of coffee?

• $3.50
• $4.00
• $7.50
• $24.50

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.CED.A.3

CCSS.HSA.REI.C.6

CCSS.HSA.SSE.A.1

x-y=11
2x+y=19

• (10,-1)
• (-1,10)
• (3,-4)
• (6,7)

Tags

CCSS.HSA.REI.C.6

-6x+5y=1
6x+4y=-10

• (1,-1)
• (0,-1)
• (1,1)
• (-1,-1)

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Solve the system of Equation (x,y)
x + 4y = –3
 x + 7y = –12 

• (-3,9)
• (9,-3)
• (3,9)
• (9,3)

Tags

CCSS.HSA.REI.C.6

Solve the system of Equation (x,y)
2x – y = 17
x – y = 10  

• (7,-3)
• (-3,7)
• (-8,3)
• (2,4)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Solve the system of Equation (x,y)
3x + 2y = –13
3x + 4y = 1 

• (-9,7)
• (7,-9)
• (4,-7)
• (-7,-4)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Solve the system of Equation (x,y)
–x + 9y = –5
x –5y = 1  

• (-4,-1)
• (4,1)
• (-4,1)
• (1,4)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Solve the system of Equation (x,y)
3x + y = –21
x + y = –5  

• (-3,8)
• (8,-3)
• (3,-8)
• (-8,3)

Tags

CCSS.HSA.REI.C.6

Solve this system using elimination
4x+ 9y = 28
-4x -y = -28

• (-7,0)
• (6,0)
• (-6,0)
• (7,0)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6