Lesson 1.3 Solving Equations

1
Lesson 1.3 Solving Equations
2
Objectives

• Translate verbal expressions into algebraic
  expressions and equations, and vice versa
• Solve equations using the properties of equality

3
Vocab.

• Open Sentence - ____
• Equation - _____
• Solution - _____
• A. a mathematical sentence stating that two
  mathematical expressions are equal
• B. the replacement that results in a true
  sentence
• C. a mathematical sentence containing one or
  more variables

4
(No Transcript)
5
Properties of Equality
Property Symbols Examples
Reflexive
Symmetric
Transitive
Substitution
6
(No Transcript)
7
Addition and Subtraction Property of Equality
8
Multiplication and Division Properties of Equality
9
Quick Check

• Solve One-Step Equation
• Solve a Multi-Step Equation
• Solve for a Variable The formula for the surface
  area S of a cone is , where l is the slant
  height of the cone and r is the radius of the
  base. Solve the formula for l.

10
Homework

• Page 22 and 23 ? 23 59 every other odd
• Make sure to read and take notes for Section 1.4
  Solving Absolute Value Equations
• The Mid-Chapter Quiz on Page 26 is a good review.