10+2x
Rewrite this expression with the commutative property.
10+3x
3x+10
6x - 4 + 4x
10x-4
Define Variable
The letter in an algebraic equation/expression
2(y-0.8z)
2y-1.6z
-(6y-10)
-6y+10
True or False?
This is an example of the Commutative Property
7x-4=4-7x
False
Reason: Commutative Property does not apply to subtraction.
v - 5 + 2
v-3
Commutative Property
Moving things around in an equation, but it is still equal (only multiplication and addition)
-(3-4x)
-3+4x
m(3n-9)
3nm-9m
Which of the following represents the commutative property of addition?
a. 8+5=5+8
b. 5x8=8x5
c. 8+5=5x8
A
10b + 2 - 4b
6b+2
Define Distributive Property
Multiplying the number in front of the parenthesis by the terms inside the parenthesis.
16+3f-5f+2
18-2f
7(2x-6)
14x-42
True or False?
This is an example of the Commutative Property
15x3=3x15
True
6c - 10 - 2c + 12
4c+2
What are expressions?
equations without an equal sign
5(3/2r-8)
15/2r-40
-3(7x-8)
-21x+28
If 1.22 + 3. 789 = 5.009, what is the value of 3.789 + 1.22?
5.009
12c-8d+5-c+10d
11c+2d+5
What is a Coefficient
the number in front of the variable, usually attached to the variable through multiplication
5.5+h+3.05-2h
8.05-h