Algebra 1 Notes 1.1.notebook August 30, 2018

Before we...

Today we will...Use addition/subtraction/mult/division to solve linear equations.

Why?

1.1 Solving Simple Equations

Summary...

Assign: Pg.8 12,13,14,25,27,28,33,41,58-65

So we can find Usain Bolt's average speed in the 200-meter dash.

https://www.youtube.com/watch?v=_DjvvI­0xjc

Algebra 1 Notes 1.1.notebook August 30, 2018

x + 3 = 5

¼(8x - 12) + 3x = 4(2x - ¾) + 2

Algebra 1 Notes 1.1.notebook August 30, 2018

Vocabulary:

Equation ­ A statement that two expressions are equal.

Linear Equation in One Variable ­ An Equation that can be written in the form ax + b = 0. (a≠0)

Solution ­ A value that makes the equation true.

Inverse Operations - Two operations that undo each other.

Equivalent Equations - Equations that have the same solution(s).

Algebra 1 Notes 1.1.notebook August 30, 2018

Coefficient: The numerical value placed before and multiplying the variable.

4x

½y

3 + x

Algebra 1 Notes 1.1.notebook August 30, 2018

Solving Linear Equations by Adding/Subtracting

Algebra 1 Notes 1.1.notebook August 30, 2018

Example 1: Solving by using Add/Sub

a) x - 3 = -5 b) 0.9 = y + 2.8

Algebra 1 Notes 1.1.notebook August 30, 2018

a b=c c

Algebra 1 Notes 1.1.notebook August 30, 2018

Algebra 1 Notes 1.1.notebook August 30, 2018

3 7- = 6x

Algebra 1 Notes 1.1.notebook August 30, 2018

Algebra 1 Notes 1.1.notebook August 30, 2018

Algebra 1 Notes 1.1.notebook August 30, 2018