Solving Equations and models

Presentation

•

Mathematics

•

7th Grade

•

Medium

•

CCSS

7.EE.B.4A, HSA.CED.A.3

Standards-aligned

Rayya Carrington

Used 15+ times

FREE Resource

6 Slides • 4 Questions

Solving Equations and models

By Rayya Carrington

A model is a picture, drawing, structure, etc.

EQUATION

(2 expressions that are equal)

2x + 1 = 15

An equation

2x -1 = 5

can be expressed as a model.

-1

2x -1 = 5

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

Multiple Choice

What is the equation modeled?

2 - 4 = 10

2x - 4 = 10

2 + 4 = 10

2x + 4 =10

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

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

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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