Expressions vs.
Equations
Equations
A mathematical phrase that can include numbers, variables, and operations symbols.
What is an expression?
The coefficient, the variable, and the constant.
What are the parts of an expression?
A number that when multiplied by itself or another numbers results in a product
What is a factor?
Use the Commutative Property with a + b
What is b + a
Replacing variables with numbers in order to simplify or solve expressions or equations.
What is substitution
A mathematical statement that shows that two expressions are equal to each other.
What is an equation?
Evaluate 23
What is 8?
A number made by multiplying two whole numbers larger than 1.
What is a multiple
Use the Associative Property with (a + b) + c
What is a + (b + c)
Check if x = 2
satisfies 3x = 6
What is 2 satisfies 3x = 6; TRUE
One has an equal sign and the other does not.
Evaluate x + 5 when x = 3
What is 8?
The GCF of 12 and 16
What is 4
An equivalent expression for
3x + 6
What is 3(x + 2)
Solve for y in
y + 4 = 9
What is 5
5x3 + 12
What is an example of an expression?
Rewrite this expression
What is 3x + 12?
Find the LCM of 4 and 5
What is 20
Simplify
2(3 + 4)
What is 14
Evaluate for y in x + y = 10 when x = 2.
What is y = 8
9f + 6 = 33
What is an example of an equation?
The meaning of x in x + 2 = 7
What is 5 or x = 5?
Use the Distributive Property with common factor of 3 and 9
3(4 + 5)
3(3 + 6)
3(2+7)
3(1 + 8)
Factorize 4x + 8
What is 2(2x + 4) OR 4(x + 2)
Solve for x in 2x - 3 = 7
What is x = 5