Ch 8 Equations and Inequalities 8.1 Solving Equations with Rational Coefficients

Algebraic Equation Has an equal sign and a variable Directions: Solve Solution: a value for the variable that makes the equation true

Properties of Equality Multiplication Property of Equality Division Property of Equality

Inverse Operations Undo each other To under multiplication use the: Division Property of Equality To under Division use the: Multiplication Property of Equality

Example 1: Solve Hint: When you divide fractions multiply by its reciprocal

Example 2: Solve -1 2 2

Example 3: Solve -19.6 =5.6x

Example 4: Solve -20.9y = -250.8

(price per box) ( Number of boxes) = Total (14.5)(b) =116 Example 5: Kipton spent $116 on boxes of baseball cards. He paid $14.50 per box. Write and solve an equation to find how many boxes of cards Kipton bought. (price per box) ( Number of boxes) = Total (14.5)(b) =116

Homework Page 327 (12-40) even