Vocab
Define VARIABLE
What is the first step:
x + 4 = 7
subtract 4 on both sides
3x = 15
5
3x + 2 = 20
6
3 + ___ = 5
2
Define CONSTANT
The number by itself; it does not change
What is the first step in
2x-5=25
Add 5
20
2x + 7 = 14
2
(5)(2) = ____
10
Define COEFFICIENT
The number in front of the variable
What is the variable in equation
5+20=x
,x (variable)
4x = 24
6
4x - 5 = 15
5
15 + ___ = 23
8
Define an EQUATION
...
To solve equations, I always use the _________ (inverse) operation (sign).
OPPOSITE
x/4 = 5
20
x/2 + 5 = 21
32
14
Define an EXPRESSION
...
What is the next step?
3x - 6 = 24
3x = 30
divide by 3
x/6 = 20
120
x/5 - 8 = 15
115
8 - ___ = 4
4