(i) What should be subtracted from -2 to get38?(ii) What should be added to -2 to get 38?
(i) Set the required number be =x According to the condition,−2−x=38⇒−x=38+2⇒−x=3+168⇒x=−198∴The required number=−198(ii) let the required number be =x According to the condition,−2+x=38⇒x=38+2⇒x=3+168=198=238∴The required number=198=238