Elimination - Systems of Equations

Solve the system of equations by elimination.

 $x+3y=-20$ 

 $4x+5y=-38$  

•  $\left(2,-6\right)$  
  

•  $\left(-2,\ 6\right)$  

•  $\left(-6,\ -2\right)$  

•  $\left(-2,-6\right)$  

Solve the system of equations by elimination.

 $2x-7y=9$  

 $x+2y=10$  

•  $\left(8,\ 1\right)$  

•  $\left(1,\ 8\right)$  

•  $\left(-1,\ 12\right)$  

•  $\left(12,\ -1\right)$  

Solve the system of equations by elimination.

 $x+2y=-2$ 
 $5x-3y=29$   

•  $\left(3,\ -8\right)$  

•  $\left(-8,\ 3\right)$  

•  $\left(4,\ -3\right)$  

•  $\left(-3,\ 4\right)$  

Solve the system of equations by elimination.

 $3x-4y=1$  
 $x-7y=23$  

•  $\left(-5,\ -4\right)$  
  

•  $\left(-4,\ -5\right)$  

•  $\left(-5,\ 4\right)$  

•  $\left(4,\ -5\right)$  

Is  $\left(1,\ 9\right)$  a solution to this system of equations?
 $2x+3y=25$  
 $8x+5y=37$  

• Yes

• No

Solve the system of equations by elimination.

 $5x-y=5$ 
 $10x-2y=15$   

•  $\infty$  

•  $\phi$  

•  $\left(-5,\ 20\right)$  

•  $\left(5,\ -20\right)$  

Solve the system of equations by elimination.

 $5x+2y=-37$ 
 $4x+y=-29$ 

•  $\left(-7,\ -1\right)$  

•  $\left(-1,\ -7\right)$  

•  $\left(-7,\ 1\right)$  

•  $\left(1,\ -7\right)$  

Is  $\left(2,-2\right)$  a solution to the system of equations?

 $-3x+y=-8$  
 $2x+7y=-10$ 

• Yes

• No

Solve the system of equations by elimination.

 $2x-5y=-6$  
 $9x-y=-27$ 

•  $\left(0,-3\right)$  

•  $\left(3,\ 0\right)$  

•  $\left(0,\ 3\right)$  

•  $\left(-3,\ 0\right)$  

Solve the system of equations by elimination.

 $4x-y=-41$ 
 $2x-3y=-33$ 

•  $\left(-9,-5\right)$  

•  $\left(-9,\ 5\right)$  

•  $\left(-11,-5\right)$  

•  $\left(-11,\ 5\right)$