Vocabulary
A number that stands alone in an expression
Constant Term
Are 4x and 6x like terms?
Yes because they have the same variable
Simplify: 2(x + 3)
2x+6
x + x
In 4x, what is the variable
x
A letter or symbol used to represent a number.
Variable
Are 3y and 3a like terms? & why
No because they don't have the same variables
Simplify: 3(y + 4)
3y+12
3x + 4 + 2x
5x+4
In 7 + 5y, what is the constant term?
7
The number multiplied by a variable.
coefficient
Combine: 2x + 5x
7x
Simplify: 4(2a + 1)
8a+4
5 + 4x + 2 + x
5x+7
In 6x, what is the coefficient?
6
Each part of an expression separated by + or – signs.
Term
Combine: 4y + 3x + y
7x+y
Simplify:2(3x + 5) + x
7x+10
6x + 3 - 2x + 5
4x+8
How many terms are in the expression 2x + 3 + 5x?
3
The entire mathematical phrase that includes similar variables,
Like Terms
Combine: 3x + 2 + 5x + 4
8x+6
Simplify: 3(2y + 4) + 2(y + 3)
6y + 12 + 2y + 6 = 8y + 18
3(x + 2) + 2x + 4
3x + 6 + 2x + 4 = 5x + 10
What is the correct name for a number, a variable, or both together in an expression?
Term