Variables and Expressions
4 plus 15 divided 3.
9
Evaluate 4y - 15 for y=9.
21
three less than twice a number
2n-3
A basketball team played 32 games. They won 3 times as many games as they lost. How many games did they lose?
3n + n = 32
4n = 32
n = 8
The variable expression for 16 more than m
m + 16
21 minus 13 plus 8
16
Evaluate 63 - 5x for x=7.
28
Two less than the sum of three and a number
(3 + N) - 2
nine time a number decreased by 5 is equal to 49. Find the number.
9n - 5 = 49
+5 +5
9n = 54
n = 6
The variable expression for 8 less than z
z - 8
12 minus 8 divided by 2 plus 3
11
Evaluate 4(t + 3) + 1 for t=8.
45
The sum of two consecutive integers is 42
n + n+1 = 42
2n + 1 = 42
Mike is 3 year older than Sally. Mike and Sally's ages add up to 65. How old are Mike Sally.
3+s + s = 65
2s + 3= 65
2s = 62
s = 31 and M = 34
The variable expression of the value in cents of 'n' nickels.
5n
21 divided by 7 plus 14 times 2.
31
Evaluate 6(g + h) for g=8 and h=7.
90
nine time a number decreased by 5 is equal to 49
9n - 5 = 49
Peter is 22 years older than his daughter Allison. If Allison is 40 years old. How old is peter.
40 + 22 = 62
The number of days in 'w' weeks?
What is 7w
(21 plus 3) divided 4 divided by 2.
3
Evaluate 19 - (a - 4) for a=8.
15
A basketball team played 32 games. They won 3 times as many games as they lost.
3n + n = 32
three times a number increased by 8 is 38. what is the number.
3n + 8 = 38
3n = 30
n = 10