Solving Linear Systems by Elimination

When the equations in the linear system shown below are added together, what variable will be eliminated?

 $5x-3y=1$  
 $2x+3y=13$  

• The x-variable

• The y-variable

• Neither variable will be eliminated.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When the equations in the linear system shown below are added together, which equation below will be the result?

 $5x-3y=1$  
 $2x+3y=13$  

•  $7x=14$  

•  $3x=12$  

•  $7x+6y=14$  
  

•  $3x-6y=12$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations below?

 $5x-3y=1$  
 $2x+3y=13$  

•  $x=2,\ y=3$  

•  $x=2,\ y=5$  

•  $x=7,\ y=-1$  
  

•  $x=7,\ y=3$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When the equations in the linear system shown below are added together, what variable will be eliminated?

 $2x+4y=10$  
 $-2x+y=5$  

• The x-variable

• The y-variable

• Neither variable will be eliminated.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When the equations in the linear system shown below are added together, which equation below will be the result?

 $2x+4y=10$  
 $-2x+y=5$  

•  $3x=15$  

•  $5y=15$  

•  $4x+3y=15$  
  

•  $-4x+3y=15$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations below?

 $2x+4y=10$  
 $-2x+y=5$  

•  $x=3,\ y=1$  

•  $x=3,\ y=11$  

•  $x=-1,\ y=3$  
  

•  $x=-4,\ y=3$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations below?

 $3x+2y=15$  
 $x-2y=13$  

•  $x=14,\ y=\frac{1}{2}$  

•  $x=1,\ y=-3$  

•  $x=7,\ y=-10$  
  

•  $x=7,\ y=-3$  

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution to the system of equations below?

 $-3x+5y=-39$ 
 $3x+2y=-24$ 

•  $x=-5,\ y=-3$ 

•  $x=-2,\ y=-9$ 

•  $x=-2,\ y=-3$ 
  

•  $x=-5,\ y=-9$ 

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6