Vocabulary
This type of math problem has an equal sign
Equation
What is x?
x + 5 = 16
x = 11
What is x?
3x = 75
x = 25
Solve!
x - 10, when x = 22
12
A number reduced by sixteen
x - 16
Another word for the letters used in expressions and equations
Variable
What is x?
x - 28 = 40
x = 68
What is x?
2x + 5 = 25
x = 10
Solve!
2x + 9, when x = 11
31
A number multiplied by 7
7x
An expression is made up of 3 things. What are they?
1. Variable
2. Operation
3. Number
What is x?
6x = 66
x = 11
5x2 - 18 = 27
Which is correct?
A. x = 3
B. x = 2
C. x = 1
A. x = 3
Solve!
4x + 2y, when x = 8 and y = 12
56
A number divided by 3
x/3
A ________ is a set of items or number that follow a predicted rule.
Pattern
What is x?
x/4 = 28
x = 112
What is x?
150/x = 2
x = 75
Solve!
(x - 2)(y + 5), when x = 27 and y = 11
400
8 times a number, then added to 3
8x + 3
What type of math is where numbers and symbols are used to formulate expressions and equations.
Algebra
Solve
23 - x = 15
x = 8
What is x?
4x + 302 = 150 + 300
37
2(3x2 + x + 6), when x = 6
240
The sum of 7 and a number, multiplied by 4
4(7 + x)