Vocabulary
Equations 1
Equations 2
Equations 3
Equations 4
100
3a and 4a are examples of _______.
Unlike terms.
100
r – 4 = 11
r = 15
100
x/3 + 2 = 20
x = 54
100
x/6 + 4 = 40
x = 216
100
5x - 3x + 7 - 2 = 25 + 5
x =
200
4r and 5r are examples of __________.
Like terms.
200
x + 5 = 10
x = 5
200
4a – 3 = 21
a = 6
200
8a – 2 = 54
a = 7
200
r/2 + 13.2 - 5.5 = 23.1 - 14.2
r =
300
What is an inverse operation? Definition and example.
Inverse operations are operations that undo each other.
300
x + 4 – 3 = 6 ∙ 5
x = 29
300
2x + 14 = 34
x = 10
300
r/9 - 4 = 8
r = 108
300
4b + 6b + 5.2 - 2.7 = 5.3 + 10.6
b =
400
What is a letter that represents a number in an equation?
Variable
400
2x + 14 = 34
x = 10
400
r/5 - 4 = 41
r = 225
400
4a + 3a + 6 = 57 - 2
a = 7
400
h/5 + 4.1 - 2.9 = 8.1 + 5.4 - 4.6
h =
500
What do we call this type of number sentence? 5t + 3r - 5 = 7
Variable equation
500
2x + 7 = 15
x = 4
500
4x + 8 = 40
x = 8
500
x/4 + 7 - 2 = 8 + 10
x = 52
500
18g - 6g + 12 + 8 = 46 + 12
g =
M
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