Vocabulary
Identify the variable in the expression 3x + 7.
x
12+8÷4
14
x+5 when x=4
9
A number increased by 7
x+7
6x+9
3(2x+3)
Identify the constant in the expression 4x+7.
7
(6+10)÷4
4
3y when y=6
18
Three times a number
3x
8y−12
4(2y-3)
In the term 9y, what is the coefficient?
9
7x+3x
10x
2a+7 when a=5
17
The sum of a number and 5, then doubled
2(x+5)
10a+15b
5(2a+3b)
Which of the following are like terms?
3a, 5a, 2b, a2
3a and 5a
5y+12−2y
3y+12
4m−3 when m=8
29
A number decreased by 4, then multiplied by 3.
3(x-4)
14m+21n
7(2m+3n)
Write an expression that has:
at least one variable
one coefficient
one constant
Answers may vary.
4(2a+5)−a
7a+20
2(n+6)−5 when n=7
21
The sum of twice a number and 7 is subtracted from 20.
20-(2x+7)
15a+25b
5(3a+5b)