Transcript MJ2A

MJ2A
Ch 5.9 – Solving Equations with
Rational Numbers
Bellwork
Find the LCM of the following:
1. 20 & 12
2. 15 & 75
3. 16a2 & 14ab
Assignment Review
Practice Skills workbook lesson 5.6
Odd problems only
Write the problems on a separate
sheet of paper and show how you got
your answers…
Before we begin…
Please take out your notebook and get
ready to work…
Ok…so now that we know the rules of
fractions we will apply what we
learned to solving equations…
Objective
Students will solve equations with
rational numbers
Quick Review
To solve equations
1. The goal is to isolate the variable
2. We use the balanced equation method –
which means what you do to one side of
the equation you do to the other side…
3. We also use inverse operations to help
isolate the variable…
Let’s take a look at adding & subtracting…
Solving Equations –
Add/Subtract
Demonstrate on Board
1. x + 3/5 = 2/3
2. y – 3/8 = 3/4
Your Turn
In the notes section of your
notebook write and solve the
following:
1. 3/2 = w + 3/5
2. c – 3/5 = 5/6
Solving Equations –
Multiply/Divide
Demonstrate on board
1. 5 = 1/4y
2. 2/3x = 7
Your Turn
In the notes section of your
notebook write and solve the
following:
1. -1/6s = 15
2. 9 = 3/4g
Summary
In the notes section of your notebook
summarize the key concepts covered
in today’s lesson
Today we discussed
Solving equations with rational numbers
Assignment
Text p. 246 # 14 – 40
Reminder
This assignment is due tomorrow
I do not accept late assignments
Write the problem and show your work
Check the answers to the odd problems in the
back of the book
If you did not get the same answer – you need
to do some problem solving and figure out what
you did wrong!