Solving Systems of Equations

What will you sub in to Equation 2 for y?

• -2

• 18

• 3y

• 4x

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What will you sub in to Equation 2 for y?

• 5x - 7

• -7

• -2y

• -3x - 2y

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What will you sub in to Equation 2 for y?

• 4x + 6

• -4x + 6

• 6

• 21

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What will you sub in to Equation 1 for x?

• 2y + 11

• -2y + 11

• -13

• 11

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What will you sub in to Equation 2 for y?

• 5x - 2

• -5x - 2

• -2

• -12

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What will you sub in to Equation 2 for y?

• 5x - 3

• -5x + 3

• -3

• 24

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The entire PURPOSE for using the technique substitution when solving systems of equations is best described as:

• To take equations with two unknown variables, rearrange one equation so that I can actually solve the other once it has just one equation, one unknown. Use that answer to get the other.

• To take equations with two unknown variables, rearrange one equation so that I can actually solve it. It is possible to solve an equation that has more unknown variables that equations provided.

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Once I learn the entire process of solving a system of equations this year, my final answers will be in this format:

• (x, y)

• (y, x) 

• x

• y

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

How many solutions does this system have _____ ? Explain.

• none

• 1

• 2

• Infinitely many

Tags

CCSS.8.EE.C.8B

Solve the system of equations. Show all work here then choose the correct answer.

• (-23, 4)

• (-4, -3)

• (-2, -4)

• No solution

• Infinite solutions

Tags

CCSS.8.EE.C.8B