Elimination Day 1

Solve using elimination:

 $4x+9y=28$  
 $-4x-y=-28$  

•  $\left(-7,0\right)$  

•  $\left(6,0\right)$  

•  $\left(0,7\right)$ 

•  $\left(7,0\right)$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
 $-9x-4y=-20$  

 $5x+4y=4$  

•  $\left(-4,4\right)$  

•  $\left(4,4\right)$  

•  $\left(4,-4\right)$  

•  $\left(-4,-4\right)$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
 $7x+y=-9$  

 $-3x-y=5$  

• No solution

•  $\left(1,8\right)$  

•  $\left(-2,-3\right)$  

•  $\left(-1,-2\right)$ 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
 $3x+y=19$  

 $2x-y=6$  

•  $\left(5,14\right)$  

•  $\left(4,5\right)$  

•  $\left(5,4\right)$  

•  $\left(14,5\right)$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve using elimination:
 $4x+8y=20$  

 $-4x+2y=-30$  

•  $\left(-7,1\right)$  

•  $\left(2,-5\right)$  

•  $\left(-2,5\right)$  

•  $\left(7,-1\right)$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination:
 $-4x-4y=0$  

 $4x+4y=0$  

•  $\left(-6,-4\right)$  

• Infinitely many solutions 

•  $\left(-6,10\right)$  

• No Solution 

Tags

CCSS.8.EE.C.8B

Solve the system by elimination:
 $7x+y=-9$  

 $-3x-y=5$ 

• No solution

•  $\left(1,8\right)$ 

•  $\left(-2,-3\right)$  

•  $\left(-1,-2\right)$ 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination:
 $3x+y=19$ 

 $2x-y=6$ 

•  $\left(5,14\right)$  

•  $\left(4,5\right)$  

•  $\left(5,4\right)$  

•  $\left(14,5\right)$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system by elimination:
 $x+6y=17$  

 $x-3y=8$ 

•  $\left(5,2\right)_{ }$  

•  $\left(11,1\right)$  

•   $\left(1,11\right)$  

• No Solution

Tags

CCSS.8.EE.C.8B

Solve the system by elimination:
 $x+4y=-3$  

 $x+7y=-12$  

•  $\left(-3,9\right)$  

•  $\left(9,-3\right)$  

•  $\left(3,9\right)$  

•  $\left(9,3\right)$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6