Vocab
The letter in the equation, represents an unknown value
Variable
__________ is the inverse of addition.
Subtraction
Solve for x.
2x + 1 = 5
x= 2
Simplify by combining the like terms:
6x + 2x - 3
8x - 3
Jose paid $47.00 for 4 movie tickets. Each ticket cost the same amount. What was the cost of each movie ticket in dollars and cents?
$11.75
The term for a number in an equation that does not have a variable
constant
_____________ is the inverse of multiplication.
Division
Solve for x.
3x - 2 = 7
x= 3
Simplify by combining the like terms:
4x + 4 + 8x
12x + 4
Circle A has a radius of 4 cm. The radius of Circle B is double the radius of Circle A. What is the diameter of Circle B?
16 cm
The term that describes "opposite operations" (For example: addition/subtraction and multiplication/division)
Inverse operations
A negative multiplied times a negative is a ______.
Positive
Solve for x.
6x + 4 = 28
x= 4
Simplify by combining the like terms:
10x - 5x - 5
5x - 5
The ratio of the number of almonds to the number of raisins in a bag of trail mix is 4/3. There are 100 almonds in the bag. How many raisins are in the bag?
75 raisins
Terms in an equation that have the same variable and exponent are called:
Like Terms
When solving two step equations, the first step is to inverse ______ or ______.
Addition or Subtraction
Solve for x.
x/2 + 1 = 8
x= 14
Simplify by combining the like terms:
2x - 6 + 9x - 2
11x - 8
What is the side length of a square with an area of 121 in2?
x = 11
What is the term for a number in front of a variable?
Coefficient
When solving two step equations, the second step is to inverse ______ and _______ .
Multiplication and Division
Solve for x.
x/2 - 10 = 5
x = 30
Simplify by combining the like terms:
3x + 6 + 7x - 3 - 8x
2x + 3
If x = 3, what is the value of the expression: x2 + 2x + 10 + 5x
40