Prove-It #2 (Solving Equations using the Box Method)

Using the box method, isolate the variable and

determine the value of y.

• 6

• 2

• 4

Solve for y and confirm your answer.

When completing a check to confirm your solution

the last line on the check would be?

• 14 = 14

• 26 = 26

• 24 = 24

• 12 = 12

When using the box method, what would the

next line of the solution be?

• 1 = c

• 5c = 15

• 16 = 1c

• 15 = 5c

There is a mistake made in this solution. Find where the mistake was made, correct it, and determine the correct solution for w.

Tags

CCSS.7.EE.B.4A

There is a mistake made in the first part of the box method solution. Identify the error.

• 4 should be -4

• 12 should be -12

What is the next step in the solution?

• multiply both sides by 5

• subtract both sides by 5

• divide both sides by 5

• divide both sides by 20

Tags

CCSS.7.EE.B.4A

Check the box step work shown by this student. Identify where a mistake may have been made in the solution steps?

• -35 should be 35

• -15 should be 15

• 20 should be - 50

• There is no error to this point

Tags

CCSS.HSA.REI.A.1

Using the box method, what will the next step of the solution process look like when determining the value of n?

• 2n + 6 = 11

• 2n + 8 = 22

• 2n + 8 = 11

• 2n = 3

Tags

CCSS.HSA.REI.A.1

Determine if the solution is correct by verifying the answer by completing a check

• Yes, the solution is correct as the check ends with

  39 = 39

• Yes, the solution is correct as the check ends with

  27 = 27

• No, the solution is not correct as the check ends with

  39 = 16

Tags

CCSS.6.EE.B.5

What will the next line in the box method look like?

• 11x = 20

• 9x = 20

• 8x = 18