Systems Elimination (Easy)

Solve by elimination:

 $4x\ +\ 9y\ =\ 28$  

 $-4x-1y\ =-28$  

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Solve by elimination:
 $-9x-4y=-20$  
 $5x\ +\ 4y\ =\ 4$  

• (-4,4)

• (4,4)

• (4,-4)

• (-4,-4)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Solve by elimination:
 $7x+1y=-9$  
 $-3x-1y=5$  

• No solution

• (1,8)

• (-2,-3)

• (-1,-2)

Tags

CCSS.HSA.REI.C.5

CCSS.HSA.REI.C.6

Is (-3, -7) a solution the system:

y = 4x + 5

y = x – 4

• YES

• NO

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Solve the system:
 $3x+1y=19$  
 $2x-1y=6$  

• (5, 14)

• (4, 5)

• (5, 4)

• (14, 5)

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

Check to see if (-2,1) is a solution to the following system:

x + 2y = 0

4x + 3y = 1

• YES

• NO

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Is (1,10) a solution to the system:

y = 7x + 5

y = x + 9

• YES

• NO

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.11

Is (1,7) a solution to the system:

y = 3x + 4

y = x + 6

• YES

• NO

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

Is (0,2) a solution to the system:

3x + 2y = 4

8x - 3y = -6

• YES

• NO

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

Is (5, 2) a solution to the system:

x + y = 7

x - y = 4

• YES

• NO

Tags

CCSS.HSA.REI.C.6