Order of operations
Simplify the following expression

62
8(4+2) = ?
48
Which law does this represent?
y + 7 = 7 + y
Commutative
20 = 2x
x =
10
Simplify the following expression

5
5(x-3)
5x - 15
14 + -12
2
x = ?
9
3 + 42 x (3 + 2)
213
7+9(2x-3)
18x - 20
Write and equivalent expression using the associative law:
(3+4) + x =
3 + (4 + x)
x = ?
5

45
-3(-x-10)
3x + 30
What is 15% of 120
18
(3(x + 3) + 2) / 10 = 2.3
x =
4

30
x + 10 - 6(x-3x) +4
x + 10 - 6x - 18x + 4
14 - 23x or
- 23x + 14
What is the value of:
84
4096
((2x + 5) / 4 - 3) =
x =
17.5