vocab

2. an alphabet or term that represents an unknown value
5. A mathematical process
7. an equation with only one possible solution
9. a combination of terms with operations between them
10. a mathematical statement that shows that two mathematical expressions are equal
12. properties that can be used to rewrite expressions

1. a number attached to a variable
3. the operations that undo what was done by the previous operation
4. has a solution that is a real number that will produce a true statement when substituted for the variable
6. numbers can multiply together to get another number
8. parts of an expression that are separated by addition or subtraction operations
11. an equation with more than one variable that represents known values