Jackson’s Math – Due Mon, July 21

(Show all steps)
Solve: 3(x + 4) = 21

• x = 3

• x = 5

• x = 7

• x = 1

Tags

CCSS.7.EE.B.4A

(Show all steps)
Solve: 2(x - 5) = -6

• x = 2

• x = -2

• x = 8

• x = -8

Tags

CCSS.7.EE.B.4A

(Show all steps)
Solve: -4(x + 3) = -20

• x = 2

• x = -2

• x = 5

• x = -5

Tags

CCSS.7.EE.B.4A

(Show all steps)
Solve: -2(x - 7) = 10

• x = 2

• x = -2

• x = -12

• x = 12

Tags

CCSS.7.EE.B.4A

(Show all steps)
Solve: 2x + 5 = x + 11

• x = 6

• x = 8

• x = 3

• x = -6

(Show all steps)
Solve: 3(x - 2) = 2x + 1

• x = 7

• x = 5

• x = 3

• x = -1

Jackson buys 3 packs of stickers and 1 notebook.
Each pack of stickers costs the same.
The notebook costs $4 more than each sticker pack.
If he spent $19 total, how much does each pack of stickers cost?

• $3

• $4

• $5

• $2

Tags

CCSS.7.EE.B.4A

A gym charges a one-time fee of $25 and a $10 per-session fee.
If Jackson spent a total of $85, how many sessions did he attend?

• 6

• 5

• 7

• 8

Tags

CCSS.7.EE.B.4A

• The distributive property was applied incorrectly; it should be 2x + 6 = 14.

• The equation was solved correctly; there is no mistake.

• The constant was subtracted instead of added.

• The variable was isolated incorrectly at the last step.

Tags

CCSS.HSA.REI.A.1

• The distributive property was applied incorrectly; it should be -3x + 12 = 15.

• The equation should have been divided by -3 at the start.

• The variable x was isolated incorrectly in the last step.

• The constant 4 was added instead of subtracted.

Tags

CCSS.HSA.REI.A.1