Question

The number in each cell is the sum of numbers in cells in two neighbor cells. Two numbers are already written in the cells. Which number needs to be written in the cell marked with ?

Answer 1

Given : The number in each cell is the sum of numbers in cells in two neighbor cells

Two numbers are already written in the cells.

To Find :  find value of x

Solution:

Suppose right side of 10 is a

a = 10 + ( number right to a)

=> ( number right to a) = a - 0

a - 10  = a + number right to (a - 10)

=> number right to (a - 10) = - 10

Similarly :

Then numbers will be like this

10      a     (a - 10)   - 10   - a      3

now  - 10 + 3  = - a

=> - 7 = - a

=> a = 7

Complete  filling :

10      7     -3    - 10    - 7      3

3                                         10    

-7                                         7  

-10                                       -3  

-3     7    10       3       -7     -10

x = 7

Learn More:

brainly.in/question/13312509

link for Task 2

brainly.in/question/13337316