One-Step equations (+)
a + 3 = 8
5
a - 5 = 4
9
Give me an example of a variable
any letter
5a = 25
5
a/9 = 9
81
x + 2.5 = -7.6
x = -5.1
x + 8= 12
4
a - 10 = 13
23
Define inverse operation
The opposite, signs that undo each other
25n = 625
25
a/7 = 4
28
-3/4 + x = 1/4
x= 1
p + 66= 21
-45
a - 56 = 8
64
What is the inverse operation of addition?
Subtraction
18g = 486
27
a/10 = 4
40
-2.5x=8.5
x=-3.4
a + 30 = -10
a=-40
a - 15 = 15
30
Name the 4 operations
addition, subtraction, multiplication, division
12y = 144
12
a/12 = 4
48
-3/4x=12
x=-16
12 + x = 86
74
a - 48= 28
76
What can you do to check your answer when solving?
Plug your answer in
8x = 56
7
b/12 = 7
84
-25.7x=-462.6
x=18