Simultaneous Equations - Elimination

Solve:
 $x+y=5$  
 $3x-y=11$  

• x = 4

  y = 1

• x = 4

  y = -1

• x = -4

  y = 1

• x = -4

  y = -1

Solve:
 $3x+5y=4$ 
 $4x-5y=-18$  

• x = -2

  y = 2

• x = -2

  y = -2

• x = 2

  y = -2

• x = 2

  y = 2

Solve:
 $2x+3y=5$ 
 $x+3y=7$  

• x = -2

  y = 3

• x = -2

  y = -3

• x = 2

  y = 3

• x = 2

  y = -3

Solve:
 $2x+5y=29$  
 $x+5y=22$  

• x = 7

  y = 3

• x = -7

  y = -3

• x = 7

  y = -3

• x = -7

  y = 3

Solve:
 $3x-4y=26$  
 $2x-4y=20$  

• x = 6

  y = -2

• x = -6

  y = -2

• x = -6

  y = 2

• x = 6

  y = 2

Solve:
 $2x+y=16$  
 $4x-y=2$  

• x = 3

  y = 10

• x = -3

  y = -10

• x = -3

  y = 10

• x = 3

  y = -10

Solve:
 $4x-y=17$  
 $7x-y=32$  

• x = 5

  y = 3

• x = -5

  y = 3

• x = 5

  y = -3

• x = -5

  y = -3

Solve:
 $3x+2y=15$  
 $7x+2y=19$  

• x = 1

  y = 6

• x = -1

  y = 6

• x = 1

  y = -6

• x = -1

  y = -6

Solve:
 $x+y=5$  
 $x-y=1$  

• x=2, y=3

• x=3, y=2

• x=3, y=-2

• x=-3, y=2

Solve:
 $a+b=11$  
 $a-b=3$  

• a=7, b = 4

• a=-4, b= 7

• a=4, b = 7

• a=4, b= -7