1-8 An Introduction to Equations

Slides:

Advertisements

Similar presentations

Chapter 3 Math Vocabulary

Advertisements

1.8 INTRODUCTION TO EQUATIONS I can solve equations using tables and mental math.

Solving Equations Grade 5 Math.

1-8 An Introduction to Equations

Variables and Equations Pre-Algebra. Learning Objective I can solve equations with variables.

Lesson 2.4 Variables and Equations. Types of equations An equation is a mathematical sentence with an equal sign.

Warm Up Classify the #’s 1 and 2 as true, false, or open? = x – 14 = Is x = 6 a solution of the equation 32 = 2x

Solutions to Equations and Inequalities Lesson 7.01.

Open Sentences.

1-8 An Introduction to Equations. Vocabulary Equation: A mathematical sentence that uses an equal sign. Open Sentence: An equation is an open sentence.

TABLES AND VALUES Section 1.5. Open Sentence Equation.

Pg #14-40e, Equations and Inequalities Equation = formed when an equal sign (=) is placed between two expressions creating a left and.

Ch 1.4 – Equations & Inequalities

Algebra Equations Lesson 1-7 Pages Equations An Equation is a sentence that contains an equals = sign. The equals = sign tells you that the expression.

To Start:  Simplify the following:  6(a + 10) =  -2(y – 2) =  (5 + w)5 = 6a y w.

Trigonometric Identities An identity in math is : - an unconditional statement of equality - true for all values of the variable(s) for which the equation.

1.3 Open Sentences A mathematical statement with one or more variables is called an open sentence. An open sentence is neither true nor false until the.

An Introduction to Equations

Lesson 1.4 Equations and Inequalities Goal: To learn how to solve equations and check solutions of equations and inequalities.

1-5 Open Sentences Objective: To solve open sentences by performing arithmetic operations.

Equations Students will be able to solve equations using mental math, or guess and check.

Chapter 1: Variables, Function Patterns, and Graphs 1.1 Using Variables.

Equations and Solutions Core Focus on Introductory Algebra Lesson 3.1.

Copyright © 2014, 2010, and 2006 Pearson Education, Inc. Chapter 1 Introduction to Algebraic Expressions.

Using Number Sense to Solve One-Step Equations Lesson 2-5.

Warm-Up Activity Fold your notecard lengthwise Write your name (in large letters) on blank side so it can be on your desk On the lined side of the notecard,

1.7 Intro to Solving Equations Objective(s): 1.) to determine whether an equation is true, false, or open 2.)to find solutions sets of an equation 3.)to.

Solving equations with variable on both sides Part 1.

Miss Tilton.  Equation: a math sentence with an equal sign  7x = – 35  Solution: a value for a variable that makes an equation true.  7x = – 35 

Equations and Inequalities. Unit 8 – Solving Inequalities.

SOLVING ABSOLUTE-VALUE EQUATIONS

Using Number Sense to Solve One-Step Equations

Addition and Subtraction

Using Number Sense to Solve One-Step Equations

Multiplication and Division

1-5 Equations Goals: Solve equations with one variable

Unit 4. Day 20..

Simplify Expressions 34 A number divided by 3 is 7. n ÷ 3 = 7.

Solving Algebraic Equations

What is an equation? An equation is a mathematical statement that two expressions are equal. For example, = 7 is an equation. Note: An equation.

EQ: How do I solve an equation in one variable?

Section 1-3 Equations.

OBJECTIVE: Students will solve multistep equations.

Solving Equations with Variables on Both Sides Day 2

SOLVING ABSOLUTE-VALUE EQUATIONS

Equation- a math sentence with an equal sign.

Exercise 2x − 3 = 9 x = 6.

Solving Equations Grade 5 Math.

Open Sentences.

A symbol, usually a letter, that represents one or more numbers

Objective translate verbal sentences into equations.

Section 2.4 Variables and Equations

Objective The student will be able to:

Objective The student will be able to:

Do Now 10/11/11 In your notebook, describe the PROCESS (steps you would take) to solve the following question. Then solve. What is this an example of?

Unit 4. Day 13..

Objective Translate verbal sentences into equations and inequalities.

Algebraic Expression A number sentence without an equal sign. It will have at least two terms and one operations.

Algebra 1 Section 2.4.

Algebra: Variables and Expressions

Using Number Sense to Solve One-Step Equations

Variables and Equations

To Start – 10 Points!! Simplify the following:

Warm Up Tonight’s Homework: 1-8 Lesson Check(pg 56)

Solve open sentences by performing arithmetic operations.

Equations Chapter 7.1.

Does that Equal? MGE1.OA.7 Ms. Brown - Math.

Solving Equations with Variables on Both Sides Day 2

Solving Equations With One Variable

Equations and their Solutions

Presentation transcript:

1-8 An Introduction to Equations

Equation: a mathematical sentence that uses an equal sign An equation is true if the expression on either side of the equal sign are true (1+1=2, 𝑥+𝑥=2𝑥) An equation is false if the expressions on either side of the equal sign are not equal (1+1=3, 𝑥+𝑥=3𝑥) An equation is an open sentence if it contains one or more variables and may be true or false depending on the values of the variable

Problem 1: Classifying Equations Is the equation true, false, or open? EXPLAIN 24+18=20+22 7∙8=54 2𝑥−14=54

Problem 2: Identifying Solutions of Equations Solution of an equation the value of the variable that makes the equation true Is 𝑥=6 a solution of the equation 32=2𝑥+12? Is 𝑚= 1 2 a solution of the equation 6𝑚−8=−5?

Problem 3: Writing an Equation The length of the ball court at La Venta is 14 times the height of its walls. Write an equation that can be used to find the height of a model that has length of 49cm

Problem 4: Using Mental Math to Find Solutions What is the solution of each equation? Use mental math. 𝑥+8=12 𝑎 8 =9

Problem 5: Using a Table to Find Solutions What is the solution of 5𝑛+8=48 𝒏 𝟓𝒏+𝟖 𝟒𝟖

Problem 6: Estimating a Solution What is an estimate of the solution of −9𝑥−5=28? Use a table. 𝒙 −𝟗𝒙−𝟓 𝟐𝟖