Solving Systems of Equations: Elimination Method Reminder

When solving a system of equation, when do you SUBTRACT the equations from each other?

• When you see identical terms in one of the equations.

• When you see opposite terms in each equation.

• When you see opposite terms in one of the equations.

• When you see identical terms in each equation.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

When solving a system of equation, when do you ADD the equations from each other?

• When you see identical terms in one of the equations.

• When you see opposite terms in each equation.

• When you see opposite terms in one of the equations.

• When you see identical terms in each equation.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Look at the system of equations down below. What should you do to eliminate one of the variables?

• Subtract the systems of equation from each other.

• Add the system of equations together.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

After subtracting both equations together, which variable was eliminated?

• x

• y

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the value of y?

• y = -2

• y = 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Substitute the value of y into one of the equations. What do you is the value of x?

• x = -9

• y = -1

• x = 9

• y = 1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

After finding the values of x and y, what is the point of intersection?

• (-9, 2)

• (-2, 9)

• (9, 2)

• (-2, -9)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6