Algebraic expressions

What is the difference between an equation and an expression? 

• The equal sign
• nothing
• idk
• idc 

 Identify the variables in the following expression:  4x + 2y - 6

• 4, 2, -6
• -4 and x
• X and Y 
• -6

Tags

CCSS.6.EE.A.2B

b² + 4
when b = 3

• 10
• 12
• 13
• 11

Tags

CCSS.6.EE.A.2C

Evaluate when a = 15:
2(a - 5) + 2

• 22
• 27
• 14
• 7

Tags

CCSS.6.EE.A.2C

6a - 3d
when a = 1, d = 2

• 3
• 12
• 1
• 0

Tags

CCSS.6.EE.A.2C

2x + 3 + x²; for x = 4

• 17
• 27
• 19
• 25

Tags

CCSS.6.EE.A.2C

8y + 12 - 2z
for y = 4 and z = 2

• 40
• 20
• 84
• 34

Tags

CCSS.6.EE.A.2C

Evaluate 3x + 8   if x = 2

• 13
• 14
• 15
• 16

Tags

CCSS.6.EE.A.2C

Evaluate when x = 8:
2x + x - 10

• 34
• 22
• 14
• 24

Tags

CCSS.6.EE.A.2C

Evaluate the expression when x = 3. 
2x² - 5

• 31
• 12
• 7
• 13

Tags

CCSS.6.EE.A.2C