Elimination Adding and Subtracting

Solve by elimination:
7x-9y=29
7x+2y=-15

• (-4,-1)

• (-1.-4)

• (-1,4)

• (1,-4)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination:
7x - 5y = -24
-9x + 5y = 18

• (3, 9)

• (-3, -5)

• (3, 11)

• (3, -11)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve by elimination: 
-6x+6y=6
 -6x+3y=-12

• (6,5)

• (5,6)

• (-5,6)

• (6,-5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When using the elimination method, what should be the goal when adding or subtracting the equations?

• To eliminate one of the variables

• To multiply the equations

• To square the equations

• To divide the equations

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the next step after adding or subtracting the equations in the elimination method?

• Graph the equations to find the solution

• Solve for the remaining variable

• Divide the equations by a random number

• Multiply the equations by a random number

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the first step in solving a system of linear equations using the elimination method?

• Divide the variables by the same number

• Align the variables by making the coefficients the same

• Ignore one of the variables

• Substitute the variables with random values

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the final step in solving a system of linear equations using the elimination method?

• Substitute the value found into one of the original equations to solve for the remaining variable

• Multiply both equations by a random number

• Divide both equations by a random number

• Add the two equations together without eliminating any variables

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the purpose of multiplying the equations in the elimination method?

• To waste time and effort

• To confuse the person solving the equations

• To make the equations look more complicated

• To create opposite coefficients for one of the variables

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is the best method for solving this system of equations?

• Substitution

• Elimination

• Graphing

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which is the best method for solving this system of equations?

• Elimination

• Substitution

• Graphing

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6