Linear Equations

4. the amount of money invested or borrowed at a certain rate of interest
5. an equation that contains a variable or variables
6. an equation that is true for all values of the variable
8. a letter or symbol used to represent an unknown
10. the number 0 (for the real numbers)
11. a value or values of the variable that make an algebraic sentence true
12. a(b + c) = ab + ac or a(b - c) = ab - ac
13. a payment for the use of money borrowed or invested
14. Property when the sides of an equation are interchanged, an equivalent equation is formed; if a = b, then b = a

1. the reciprocal of a number; if x is a number other than zero, then 1/x is the multiplicative inverse; the product of a number and its multiplicative inverse is 1
2. an equation containing more than one variable
3. the number 1 (for the real numbers)
7. a mathematical sentence whose verb is 'equal' (=)
9. terms that have the same variable(s), with each variable raised to the same exponent