SUB PLAN 1

What is the difference between an equation and an expression?

• An equation has an equal sign and an expression does not.
• An expression has an equal sign and an equation does not.
• This must be a trick! They are the same thing!
• One has variables and the other does not.

 2(-8+7c) 

• 16+14c
• 30c
• -23c
• 14c+(-16)

4+(-7)-10x+5x

• -5x-3
• 24+35x
• -6-15x
• 15x+3

 6(-4+3)+5v+10v

• 9v
• 21v
• 6+15v
• -6+15v

-1(-10-3)-5a-9a

• -31-14a
• -27a
• -13-14a
• -14a+13

2(8+9b)

• 16+18b
• 25b
• 18b
• -16-18b

(3-9y+8y) 

• -y+3
• 2y
• y-3
• 27+17y

3(10-8x)

• 30x+24
• 30-24x
• 78x
• 24x

How many terms are in the following expression?
x²+7x-13

• 1
• 2
• 3
• 6

Write the expression for the perimeter of the rectangle

• 6x - 6
• 4x + 10
• 8x - 8
• 3x - 3