
Solving Equations and models
Presentation
•
Mathematics
•
7th Grade
•
Medium
Standards-aligned
Rayya Carrington
Used 15+ times
FREE Resource
6 Slides • 4 Questions
1
Solving Equations and models
By Rayya Carrington
2
A model is a picture, drawing, structure, etc.
3
EQUATION
(2 expressions that are equal)
2x + 1 = 15
4
An equation
2x -1 = 5
5
can be expressed as a model.
=
x
x
1
1
1
1
-1
1
2x -1 = 5
6
Math's Golden Rule
What you do to one side of the equation you MUST do to the other side of the equation!
Math | 7th Grade
ALWAYS ALWAYS ALWAYS
7
Multiple Choice
What is the equation modeled?
2 - 4 = 10
2x - 4 = 10
2 + 4 = 10
2x + 4 =10
8
Multiple Choice
In the two step equation 2x -4 =10, what is the first step?
add 2 to BOTH sides
divide by 2 on BOTH sides
add 4 to BOTH sides
subtract 4 from BOTH sides
9
Multiple Choice
In the two step equation 2x -4 =10, what is the second step?
add 2 to BOTH sides
divide by 2 on BOTH sides
add 4 to BOTH sides
subtract 4
10
Multiple Choice
The solution to the modeled equation 2x - 4 = 10 is?
x = 14
x = 2
x = 7
x = -4
Solving Equations and models
By Rayya Carrington
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