x+14
A number plus fourteen
12÷4
x-7
20-x
Three groups of nine
A number increased by thirteen
x+13
3(9)
x-8
Fifteen split into three groups
Twenty minus a number
2(-4)
11+(-x)
Seven less than a number
A number reduced by eight
Eleven plus a negative number
15÷3
Twelve shared among four groups
Two groups of negative four
