Solve for x.
x plus 3 is 8
x=5
Solve for x.
x minus 5 is 4
x=9
Give me an example of a variable
any letter
What operation does sum represent?
addition
Solve for x.
x increased by 8 results in 12
x=4
Solve for x
x decreased by 10 results in 13
x=23
Define inverse operation
The opposite, signs that undo each other
What operation does difference represent?
subtraction
Solve for x.
66 more than x is 21
x=-45
Solve for x
56 subtracted from x is 8
x=64
What is the inverse operation of addition?
Subtraction
What does "is" represent in math?
equal
Solve for x
The sum of 30 and x is 120
x=90
Solve for x.
The difference of 60 and x is 30.
x=30
Name the 4 operations
addition, subtraction, multiplication, division
What operation does product represent in math?
multiplication
Solve for x.
The sum of x and 34 results in 20
x=-14
Solve for x
The difference of x and 48 results in 28.
x=76
What can you do to check your answer when solving?
Plug your answer in
What does "result in" represent in math?
equal