Miscellaneous
What is the opposite of addition?
Subtraction
2k+5=17
6
3a - 5 = 4
3
m/5 + 4 = 12
40
m/9 - 1= -2
-9
What is a variable?
A letter used to represent an unknown number
2a + 11 = 35
12
5m - 7 = 23
6
y/8 + 11 = 13
16
n/2 - 10 = -6
8
What are the four basic operations?
Addition, Subtraction, Multiplication, Division
8r + 7 = 31
3
9x - 7 = -7
0
k/4 + 2 = 6
16
r/20 - 5 = -4
20
How do you cancel out division in a two step equation?
Multiply on both sides
2r + 39 = 65
13
6k - 5 = 43
8
4+ n/5= 0
-20
z/6 - 14 = 3
102
What sign do you get when you multiply two negative numbers?
Positive
−9x + 1 = −80
9
10 − 6v = −104
19
k/7 + 21 = 32
77
y/5 - 13 = 5
90