1. Good Morning!! Be seated and quiet BEFORE the bell rings!!
Multi-Step Equations
Good Morning!!
Be seated and quiet BEFORE the bell rings!!
Pick up your warm-up sheets from your desk and get your calculator
Have homework and NOTES on your desk to be checked!!

2. Solving 1-Step, 2-Step, & Multi-Step Equations
Use inverse operations to solve multi-step equations
Solve problems involving multiple steps

3.   Undoing Operations Evaluate P E MD AS Solve
Multi-Step Equations
Undoing Operations
Evaluate P E MD AS
Solve
To solve undo operations from the bottom & work your way up!!
Note: The only exception is when you have an equation where the numerator is divided by the denominator.  

4. Real-Life Problem
John had $5 before he received his weekly allowance from his Mom. He now has $25. Write an equation to represent this situation.
How much is John’s allowance?
Let a = the amount of John’s allowance
a + 5 = 25
a = 20
John’s allowance is $20 a week

5. Real-Life Problem
Mary has only 3 cats left after 37 were removed from her home. Write an equation to represent this situation.
How many cats did Mary have originally?
Let c = the number of cats Mary had
c - 37 = 3
c = 40
Mary had 40 cats! 

6. Ex 1 Solve each equation n + 7 = 9 x – 3 = 8 -4x = -12 x = 11 2
You Try!!
n + 7 = 9
x – 3 = 8
-4x = -12
x = 11 2
m + 7 = -4
x – 5 = -7
-3x = 9
x = 15 3

7. Pair up with a neighbor. You will get 6 min
Pair up with a neighbor. You will get 6 min. to solve the following equations. (The person who gets the most correct will receive a reward!!)
m + (-7) = -24
x – 30 = -70
-14x = -52
x = -2 35
m + (-17) = -14
x – (-35) = -72
-13x = -39
x = -2 32

8. Let’s try some examples
Multi-Step Equations
Solve each of the equations below and graph on the number line:
1) 2x – 5(x + 1) = -9
2) -x + ½(2x – 3) = 3
3) 3(n – 5) – 2(n – 1) = -1
4) 5n + 3 = -7 4

9. Graph solutions to equations on the number line provided
Multi-Step Equations
Graph solutions to equations on the number line provided 1) 2) 3) 4)

10. Ex 2 Solve each equation You Try!! 3(m + 9) - 5 = -15 2(m + 7) - 5= -4
Multi-Step Equations
Ex 2 Solve each equation
You Try!!
3(m + 9) - 5 = -15
½(x – 6) + x = -2
-3x - 4 = 11 -5
1 - 2x = 21 3
2(m + 7) - 5= -4
½(x – 6) - x = -3
-3x + 1 = 11 -4
1 - 3x = 11 4

11. Graph solutions to equations on the number line provided
Multi-Step Equations
Graph solutions to equations on the number line provided 1) 2) 3) 4)

12. Get “Jiggie” With it!! For each envelope
Multi-Step Equations
Get “Jiggie” With it!!
For each envelope
Record the equation on the outside on line one
Remove all of the strips from the envelope
Put the steps in the CORRECT order to solve the equation
Note: The 1st step should be the equation and the last step should be the solution.

13. Using equations to solve problems
Multi-Step Equations
Using equations to solve problems
Define a variable
Translate words into symbols using the variable above
Solve the resulting equation
Answer the question asked

14. Translate into an equation & solve.
Multi-Step Equations
Translate into an equation & solve.
Four times the sum of a number and six is thirty-two.
The square of seven less than a number is nine.

15. Another type of problem
Multi-Step Equations
Another type of problem
The sum of two numbers is The larger number is 5 times larger than the smaller number. Find the numbers.

16. Here’s another problem
Multi-Step Equations
Here’s another problem
There were 474 tickets sold for the school football game. Students bought five times as many tickets as the faculty did. Write and solve an equation to determine how many tickets were bought by the faculty and the students.

17. Multi-Step Equations
Select two numbers
You and a partner must make up two different equations using at least two different operations
Exchange problems and solve.
Check your partners solution for accuracy.

18. Tonight’s Assignment Complete 2.3 assignment from your unit outline
Multi-Step Equations
Tonight’s Assignment
Complete 2.3 assignment from your unit outline
Study for a quiz on solving equations coming up on Wednesday!!