Question

What must be subtracted from - 7 to obtain -15?

Answer 1

Answer:

let that no be x

then

-7-x = -15

-x = -8

x = 8

HOPE IT HELPS

Answer 2

Answer:

so, the equation will be,

-7- X= -15

= X= -7-(-15)

= -7+15=8

so the value of X = 8