Question

(-7)+___________= -15​

Answer 1

Answer:

(-8)

Step-by-step explanation:

(-7)+(-8)

= -7-8

= -15

Answer 2

Answer:

(-8)

Step-by-step explanation:

(-7)+___________= -15

Suppose, _____________ = x

then, (-7)+x = -15

or, -7 + x = -15

or, x = -15 +7

or, x = -8

Hence,the answer is (-8)