Question

The sum of two integers is - 1500. One of the number is 599. Find the other number.

Answer 1

Let the required integer be n.

Then,

$\tt599 + n = - 1500 \\ \: \: \: \: \: \: \: \: \: \: \: \: \tt n = - 1500 - 599 \\ \tt \:\: \: \: \: \: \: \: \: \: \: n = \red{ - 2099}$

Or,

$\tt599 + n = 1500 \\ \tt \: \: \: \: \: \: \: \: \: \: \: \: n = 1500 - 599 \\ \tt\: \: \: \: \: \: \: \: \: \: \: \:n = \red{901}$