Question

The sum of a number and -16 is 25. Find the number.

A.
25/16
B. -9
C.
41
D. 9
please help :)

Answer 1

`\huge{ \fbox{ \sf{41}}}`

Explanation:

`\star{ \sf{ \: Let \: the \: missing \: number \: be \: x}}`

Create an equation

`\sf{x + ( - 16) = 25}`

`\mapsto{ \sf{x - 16 = 25}}`

Move 16 to right hand side and change it's sign

`\mapsto{ \sf{x = 25 + 16}}`

Add the numbers : 25 and 16

`\mapsto{ \sf{x = 41}}`

The number is 41

Hope I helped!

Best regards! :D

~TheAnimeGirl

Answer 2

41

Explanation:

n+(-16)=25

n-16=25

Add 16 to both sides to isolate the variable

n=41