Question

What should be added to 16 to get -31

Answer 1

Solution :

First number = 16

Second number = ?

Result of their sum = -31

Let the second number be x

According to question:-

⟹ 16 + x = -31

⟹ x = -31 - 16

⟹ x = -47

Therefore, second number = -47

Verification:-

⟹ 16 + (-47) = -31

⟹ 16 - 47 = -31

⟹ -31 = -31

Hence, L.H.S. = R.H.S.

-47 should be added to 16 to get -31.

Answer 2

Answer:

$let \: one \: number \: be \: \: \: \: x \\ and \: another \: number \: be \: 16 \\ \\ x + 16 = (- 31) \\ x = ( - 31) - 16 \\ x = ( - 47)$

(-47) should be added to 16 to get (-31)