Systems of Equations Elimination Addition Subtraction

Solve by elimination:
4x+9y=28
-4x-y=-28

• (-7,0)

• (6,0)

• (-6,0)

• (7,0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
-9x-4y=-20

5x+4y=4

• (-4,4)

• (4,4)

• (4,-4)

• (-4,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which method would be best (quickest) for solving the system below:
x + y = 11
3x - 4y = -2

• Substitution

• Elimination

• Graphing

• None of these

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
7x+y=-9

-3x-y=5

• No solution

• (1,8)

• (-2,-3)

• (-1,-2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• (1, -12)

• (-5, -30)

• (-5, 10)

• (1, 18)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Sam has $150 in his bank account and is saving $9.50 each week. Dave has $73 in his bank account and is saving $11.25 each week. First, Choose equations that represent Sam and Dave's bank accounts where y represents total money and x represents weeks. Sam: ​ (a)   Dave: ​ (b)   Solve your system of equations and fill in the blanks to interpret the intersection point. In ​ (c)   they will both have ​ (d)   in their accounts.

• 44 weeks

• $568

• 10.75 weeks

• $252

• $193

Tags

CCSS.8.EE.C.8C

7. Solve the system of linear equations: 2x + 5y = 13 and 3x - 2y = 4

• x = 4, y = 4

• x = 3, y = 1

• x = 2, y = 3

• x = 5, y = 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system of equations.

8x-6y=16

4x+2y=22​ (a)  

What is the x value of the solution?

• 4.1

• -10/3

• 2.8

• -2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system of equations: 5x - 4y = 3 and 2x + 3y = 8

• x = 4, y = 3

• x = 2, y = 1

• x = 3, y = 2

• x = 1, y = 5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the following system of equations: 5x - 4y = 3 and 2x + 3y = 8

• x = 4, y = 3

• x = 2, y = 1

• x = 3, y = 2

• x = 1, y = 5

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6