Solve systems by elimination

Front

What is the elimination method in solving systems of equations?

Back

The elimination method involves adding or subtracting equations to eliminate one variable, making it easier to solve for the other variable.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

How do you determine which variable to eliminate in a system of equations?

Back

Look for coefficients that can easily be made equal or opposite through multiplication, allowing for straightforward addition or subtraction.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

Back

(-4, -2)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

Back

(7, -1)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

Back

(7, 0)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

Back

(1, 5)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

Back

x

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

What is the first step in the elimination method?

Back

Align the equations so that corresponding variables and constants are in the same columns.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

What do you do if the coefficients of the variable you want to eliminate are not the same?

Back

Multiply one or both equations by a number to make the coefficients equal or opposite.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Front

What is the goal of the elimination method?

Back

To reduce a system of equations to a single equation with one variable, making it easier to solve.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6