Question

The sum of two integers is $-396$. If one of the integers is $64$, determine the other.

Answer 1

Form a linear equation with the given information and solve for unknown

The sum of two integers is $-396$.

One integer is $64$ and let the other be $\text{'}a\text{'}$.

$a+64=-396$

$\Rightarrow a=-396-64$ (Bring like terms together)

$\Rightarrow a=-460$ (add the integers and put the $-ve$ sign with the result as both are negative integers)

Hence, the other number is $-460$.