Vocabulary
Combining Like Terms
1-steps
2-steps
Variables on Both Sides
100
This is a symbol that stands for an unknown number.
variable
100
2a + 3a + 4 + 5 = 34
a = 5
100
y + 7 = 15
y = 8
100
4x + 2 = 22
x = 5
100
Variables on Both Sides, refers to both sides of what?
The equal sign
200
This is the number that is with the variable
Coefficient
200
What do variable terms have that number terms do not have?
variables (letters)
200
8x = 24
x = 3
200
4x - 8 = 24
x = 8
200
In the problem, 5x + 2 = 2x + 14 , what should you do first?
Subtract 2x from both sides
300
Examples of this include: addition-subtraction multiplication-division
Inverse Operations
300
When a number and a variable are next to each other, what operation is it?
Multiplication
300
r / 4 = 10
r = 40
300
7x - 19 = 30
x = 7
300
When x is by itself, what is its coefficient?
1
400
The word "sum" refers to this operation
Addition
400
6a + 3a + 4 + 2 = 33
a = 3
400
-5x = -30
x = 6
400
-2x + 5 = -15
x = 10
400
5x + 2 = 2x + 29
x = 9
500
If I am decreasing something, I am doing this
subtracting
500
The word "combining" refers to what operation?
Addition
500
x / -7 = 3
x = -21
500
-3x - 10 = 26
x = -12
500
8x + 2 = 6x + 18
x = 8
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