Expressions
What is the unknown number in an algebra expression called?
the variable
Solve: x/5=7
35
Solve: 3(x+4)=9
-1
What is the next number in the pattern:
2,8,14,20,...
26
Find the pattern expression for:
6, 10, 14, 18,...
2+4x
What is the following written as an expression:
the product of 4 and a number
4n
Evaluate: 3x, when x=6
18
Solve: x-6=15
21
Solve: 2(3x+2)=28
4
What is the zero term for the following: 7, 17, 27, 37...
-3
Find the pattern expression for the following:
1, 6, 11, 16,...
-4 + 5x
What is the following as an equation:
the sum of 2 times a number and 3 is 11
2n+3=11
Evalutate: 3x + 4, when x=7
25
Solve: 2x + 1= 31
15
Solve: 5x - 1 = 4x
1
Describe the pattern rule in words:
8, 5, 2, -1,...
start at 8 and take away 3 each time
Find the pattern expression for the following:
-21, -19,-17,-15,...
-23+2x
Write an equation for the following:
You and 3 friends split a $25.40 lunch bill equally. How much do each of you pay?
4x=25.40
Evaluate: 3x -4y, x=4 and y=7
-16
Solve: (x+1)/2=13
25
Solve:
3x - 5 = 2x +7
12
Find the next number in the pattern:
2, 2, 4, 6, 10, 16, 26,...
42
Find the 10th number in the following pattern:
21, 17, 13, 9,...
-15
Write an equation for the following situation:
You get paid $30 to cut each lawn. You made $280 at the end of the week after you had to pay $20 in gas. How many lawns did you cut?
30x-20=280
Evaluate: (3(4-x))/2, x=10
-9
Solve: 2x + 6 - 3x + 4=0
10
Solve: 2(x-1) + 3x=32
6.8
Find the next number in the pattern:
-9, 3, 5, -7, 9, 3, -5, 7, 9,...
-3
(there are two separate patterns here: one is the repeating number pattern; the other is the repeating pattern of -, +, +, -, +, +...
Find the 500th number in the following pattern:
131, 152, 173, 194,...
10610
A family of four went for dinner with a coupon for 4 subs for $24. They also purchased 4 drinks. The total cost was $35. How much was each drink?
$2.75 each!