Solving Systems of Equations by Elimination with Addition and Subtraction

The method of solving systems of linear equations where inverses/opposites are used to eliminate one of the variables.

• Elimination Method

• Substitution Method

• Graphing Method

• Addition Method

• Subtraction Method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Put a check on the box that denotes the method of solving systems of linear equations in two variables.

Note: You can choose one or more answers.

• Graphing Method

• Addition Method

• Subtraction Method

• Elimination Method

• Substitution Method

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

In the elimination method, what operation is used to eliminate one of the variables?

• Multiplication

• Addition or subtraction

• Division

• Exponentiation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What are the steps involved in solving a system of equations using the elimination method?

• Identifying the variable to eliminate, multiplying the equations by appropriate constants, and adding or subtracting the equations to eliminate the variable.

• Dividing the equations by random numbers

• Ignoring one of the equations

• Solving for the variable with no elimination

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

a method to solving a system of equations by getting rid of one of the variables first to solve for the other variable. 

• Systems by Graphing

• Systems by Substitution

• Systems by Elimination

• Systems by Drawing

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

3x + 5y = 46
4x + 3y = 43 
x=_____
y=_____

• (7,5)

• (8,2)

• (-9,-2)

• (0,50)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• A

• B

• C

• D

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• A

• B

• C

• D

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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