Question

(i) Find the additive inverse of sum of 238 and (-345).
(ii) Find the value of x where x-17=0.

Answer 1

Sum of 238 and (-345) =238+(-345)=238-345= -107
The additive inverse of -107 is 107.
The additive inverse of any number is that number which when added to the given number gives zero
(ii) $x-17=0$
$x=17$