# BASIC SHAPES PRESENTATION

Bapiz

Created on March 15, 2024

## More creations to inspire you

### COUNTRIES LESSON 5 GROUP 7/8

Presentation

### STAGE2- LEVEL1-MISSION 2: ANIMATION

Presentation

### LIBRARIES LIBRARIANS

Presentation

### WORLD WILDLIFE DAY

Presentation

### FOOD AND NUTRITION

Presentation

### IAU@HLPF2019

Presentation

### SPRING IN THE FOREST 2

Presentation

## Transcript

### PRESENTATION

### Problem solving

Step 6

Step 5

Step 4

Step 3

Step 2

Step 1

Index

#### When seven times a certain number is subtracted from 15, the result is -4.Find the number.

01

Decide the unknown quantity and allocate a pronumeral

### Let x be the number

Decide which operations are involved

02

### So the equation is : 15 - 7x = -4

### When :

### "... the result is -4. " --> -4

### "... is substracted from 15..." --> 15 - 7x

### "...seven times a certain number..." --> 7x

### We explain the equation

03

Translate the problem into a linear equation by isolating the pronumeral

### So the linear equation is : 15 + 4 = 7x

### 15 - 7x + 4 = 0

### 15 - 7x + 4 = -4 + 4

### 15 - 7x = -4

### 15 - 7x + 7x + 4 = 0 + 7x

### Transform in a linear equation

04

Solve the linear equation by isolating the pronumeral

### 15 + 4 = 7x19 = 7x19 / 7 = 7x / 719/7 = xThe result is 19/7

### Solve the equation

05

Check that the result does solve the initial problem

### We replace "x" by 19/715 -7x = -415 - 7 * 19/7 = -415 - 19 = -4-4 = -4

### Check the result

Write your answer in sentence form

06

Write your answer in sentence form. Remember, there is usually no pronumeral in the original problem

### Give the answer

### The number is 19/7 because :15 - 7 * 19/7 = -4

Exemple

07

Write your answer in sentence form. Remember, there is usually no pronumeral in the original problem

### Exemple

### 32/4+2x = 138/3

### Exemple

### 32/4+2x = 138/38+2x = 362x = 36-82x = 28

### Exemple

### 32/4+2x = 138/38+2x = 362x = 36-82x = 282x/2 = 28/2x = 14

Thanks for watching!