Steps Elimination Method

What is the first step in the elimination method for solving systems of equations?

• Add the two equations together.

• Subtract one equation from the other.

• Divide one equation by the other.

• Multiply one or both equations by a constant.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

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

• subtraction or addition

• exponentiation

• division

• multiplication

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the next step after eliminating one variable in the elimination method?

• substitute the value of the eliminated variable into the other equation

• multiply the equation by a constant

• add the equation to another equation

• solve for the remaining variable

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When adding or subtracting equations in the elimination method, what should be done to ensure the system remains balanced?

• Make sure the coefficients of one variable are the same or opposite in both equations.

• Ignore the coefficients and add or subtract the variables directly.

• Multiply both equations by the same number to make the coefficients equal.

• Combine the variables in one equation and eliminate the other variable in the other equation.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

what number should you multiply the top equation to eliminate variable x by adding:

• 5

• -1

• 2

• -2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Using elimination method, what would the correct next step be? Not interested in the answer.

• 3x = -3

• x - 6y = -24

• x = -3

• 3x = 3

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What would be the first step in finding the solution with elimination?

• cross out the 3y and -3y

• cross out the 4x and x

• change all the signs of the second equation

• add 1 and -11

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Using elimination method, what would the correct next step be? Not interested in the answer.

• 12x -2y = -16

• -2y = 24

• 12y = 24

• (-1,2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Which operation would allow elimination by either addition or subtraction? (check all that apply---take your time!)

• Double the bottom row

• Divide the top row by 2

• Multiply the bottom row by 4

• Multiply the top row by 4

• Multiply the top row by 2 and the bottom row by 4

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

To use the elimination method, both equations need to be in...

• slope intercept form

• standard form

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6