Hands-On Equations Lessons 8 - 12

3(x + 1) = 10 + 2x

• x = 7, 7 = 7
• x = 9, 28 = 28
• x = 7, 24 = 24
• x = 9, 10 = 10

If x = 4, evaluate: 3x + 4⋇ + 5

• 4
• -4
• 9
• 1

Tags

CCSS.6.EE.A.2C

x + ⋇ + 4x = 16 + 2x

• x = -8,⋇ = 8, 16 = 16
• x = 8,⋇ = -8, 32 = 32
• x = 8,⋇ = -8, 16 = 16
• x = -8,⋇ = 8, -32 = -32

3(x + 0) = 2(⋇ + 5)

• x = 10,⋇ = -10, -10 = -10
• x = 2,⋇ = -2, 6 = 6
• x = -2,⋇ = 2, -6 = -6
• Alex = Smart

Tags

CCSS.7.EE.B.4A

x = ⋇ + 24

• x = 24,⋇ = 0, 24 = 24
• x = -24,⋇ = -48, -24 = -24
• x = 12,⋇ = -12, 12 = 12
• x = 6,⋇ = -6, 18 = 18

If ⋇ = -2, evaluate 3x + ⋇ + 10 + 3⋇

• 8
• 14
• 12
• 6

Tags

CCSS.6.EE.A.2C

3⋇ + x = ⋇ + 6

• x = 2, ⋇ = -2, 4 = 4
• x = -6, ⋇ = 6, 12 = 12
• x = 6, ⋇ = -6, 0 = 0
• x = 4, ⋇ = -4, 2 = 2