Solving Two Step Operations

Presentation

•

Mathematics

•

9th - 12th Grade

•

Easy

Bethany Cooney

Used 2+ times

FREE Resource

4 Slides • 24 Questions

Solving Two-Step Equations Lesson

By: J. Deberry

Integers Review!

Examples:
- 5 + (-12) =
- 9 - (-3) =
- -4 x (-2) =
- -12 / 4 =

Multiple Choice

Quick Check:

When you add numbers with DIFFERENT signs you....

Subtract, then take the sign of the BIGGER number

Add, then take the sign of the SMALLER number

Add normally

Do nothing

Multiple Select

Quick Check:

Same signs = POSITIVE answer

This is the rule for...

Adding integers

Subtracting integers

Multiplying integers

Dividing integers

Multiple Choice

Quick Check:

Choose the EQUIVALENT expression for 14 - 25

14 + 25

14 - (-25)

14 + (-25)

Solving Equations Check-list

The OPPOSITE of the Order of Operations
Ask yourself... "Do I see [operation]? If so, do the OPPOSITE!
You aren't finished unless you have a checkmark for all four operations!

Multiple Choice

The goal of solving two-step equations is to:

francine

Find the coefficient

Find the value of the variable

Multiple Choice

Quick Check:

What comes first when solving the equation 5x + 3 = -7?

Divide by 5

Add 3

Subtract 3

Multiply by 5

Multiple Choice

-4x+1=21

x=120

x=5

x=30

x=-5

Fill in the Blanks

Solve: 5x + 3 = -7

Multiple Choice

Quick Check:

What comes first when solving the equation x/6 - 4 = -10?

Add 4

Subtract 4

Divide by 6

Multiply by 6

Fill in the Blanks

Solve: x/6 - 4 = -10

Multiple Choice

19 + a = -50

a = -950

a = -69

a = -31

a = -50/19

How do I know if I'm correct?!

Remember substituting variables?
Whatever solution you find, plug it back into your equation.
If the sentence is TRUE, your answer is correct!
Example: Who is correct?
- Sally says the solution to 6x + 3 = 27 is x=7
- Sam says the solution to 6x + 3 = 27 is x=4

Multiple Choice

Quick Check:

-3x - 5 = -11

Solution: x = 2

True or False?

True

False

Multiple Choice

x - 8 = -5

-13

-3

Multiple Choice

Solve for x:
-6x + 1 = -11

x = 2

x = 1.2

x = 12

x = -2

Multiple Choice

10. x / 2 - 5 = 3

x = -2

x = 2

x = 16

x = 8

Multiple Choice

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

Inverse operations

math

variable

PEMDAS

Multiple Choice

What is the first step in solving this equation:
5x + 7 = 12

Divide by 5

Subtract 5

Multiply by 7

Subtract 7

Multiple Choice

What is the first step to complete when solving this equation?
10 - 3y = 4

Add 10

Subtract 10

Add 3

Divide by -3

Multiple Choice

Solve for d:
-7(6 + d) = 49

-1

-13

Multiple Choice

Solve for x.
3/5x = 6

x = 10

x = 33

x = 11 1/3

x = 90

Multiple Choice

Solve for W:

Multiple Choice

What is the first step in solving this equation:
5x + 7 = 12

Divide by 5

Subtract 5

Add 7

Subtract 7

Multiple Choice

Solve: 3(x-4) = -3

-3

-5

Multiple Choice

Solve for x.

x = -13

x = -5

x = -4

x = 4

Poll

After working with solving equations and integers today, how are you feeling about your progress?

I have NO CLUE what I'm doing

I'm getting better but need more help

It's so easy I can do this in my sleep!

Solving Two-Step Equations Lesson

By: J. Deberry

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