Lesson: Solving One-Step Equations
Presentation
•
Mathematics
•
9th - 12th Grade
•
Medium
Standards-aligned
Christopher Gassler
Used 118+ times
FREE Resource
8 Slides • 8 Questions
1
Multiple Choice
YES, I have my notebook out, I mean, I want to learn and be successful.
Uh...No, and I know it means a bad grade, I have accepted my fate.
2
Solving One-Step Equations
Objective: Solve one-step equations
3
Math Response
What number should go in the box to make the statement true?
8 = 🔲 + 5
4
A variable is just the grown-up way of using a box.
8 = 🔲+ 5
8 = x + 5
A solution is a number that can be plugged in for the variable to make a true number statement.
8 = 3 + 5
8 = 8
5
Open Ended
When you see the problem: 188 = x + 55 what math are you going to do to figure out what x is?
6
SUBTRACTION PROPERTY OF EQUALITY
Subtracting the same number from both sides of an equal sign makes an equivalent equation.
subtract 3 from both sides
subtract 7 from both sides
6 = 6
5 + 9 = 14
7
SUBTRACTION PROPERTY OF EQUALITY
Subtracting the same number from both sides of an equal sign makes an equivalent equation.
x + 10 = 18
x + 10 - 3 = 18 - 3
x + 7 = 15
what does x equal?
what does x equal?
subtract 3 from both sides
8
EXAMPLES
Solve for x.
x + 10 = 18
23 = x + 4
9 = 15 + x
9
Dropdown
10
Multiple Choice
Given the equation: 15 = w - 6, what would you do to both sides to get w by itself?
Subtract 6 from both sides
Add 6 to both sides
Add 15 to both sides
Subtract 15 from both sides
Divide both sides by -6
11
ADDITION PROPERTY OF EQUALITY
Adding the same number to both sides of an equal sign makes an equivalent equation.
add 3 to both sides
6 = 6
x - 2 = 5
12 = x - 4
12
EXAMPLES
Solve for x.
x - 10 = 8
14 = x - 33
-11 = -15 + x
13
Multiple Choice
Given the equation: -9b = -14, what would you do to both sides to get b by itself?
Add 9 to both sides
Divide both sides by 9
Add 14 to both sides
Subtract 14 from both sides
Divide both sides by -9
14
DIVISION PROPERTY OF EQUALITY
Dividing both sides of an equal sign by the same number makes an equivalent equation.
2x = 8
2 ⋅ x = 8
2 ⋅ 🔲 = 8
91 = 7x
EXAMPLES
11 = 4x
15
Match
Match the following equations with the property you would used to solve them.
x + 3 = 9
12 = x - 5
-3x = 27
Subtraction Property of Equality
Addition Property of Equality
Division Property of Equality
Subtraction Property of Equality
Addition Property of Equality
Division Property of Equality
16
Fill in the Blanks
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MULTIPLE CHOICE
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