Question

What should be added to the sum of -25 and 20 to make it equal to the sum of -19 and 18?​

Answer 1

Answer:

4 should be added

Step-by-step explanation:

-25 + 20 = 5

-19+18 = 1

5-1 = 4

thus 4 needs to be added to sum of -25 and 20

Answer 2

Given

-25+20=-5

-19+18=-1

let assume added value as x we get

-5+x=-1

-5-(`-1)=x

-5+1=x

x= -4

therefore -4 will be added  to the sum of -25 and 20 to make it equal to the sum of -19 and 18.