Substitution Basics

Which best describes a solution to a system of equations?

Tags

CCSS.8.EE.C.8A

How do you know when a system is ready for substitution?

• You just guess

• All the variables "line up"

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• No, you need to divide -1 on both sides.

• No, you need to add y on both sides.

• No, you need to just erase the negative sign.

Tags

CCSS.6.EE.B.7

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Solve the system.

Tags

CCSS.8.EE.C.8B

Solve the system.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How many solutions will the system have?

• One

• None

• Infinitely Many

• Not Enough Information

Tags

CCSS.8.EE.C.8B

How many solutions will the system have?

• One

• None

• Infinitely Many

• Not Enough Information

Tags

CCSS.8.EE.C.8B

How many solutions will the system have?

• One

• None

• Infinitely Many

• Not Enough Information

Tags

CCSS.8.EE.C.8A

Is the student finished solving?

• No, you need to find what y equals.

• No, you can't have negative answers.

• There is no solution.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6