Answer:
look at the explanation.
Explanation:
To solve with addition... if a number is added to one side of an inequallity the the same number should also be added to the opposite side. This is so that the inequallity remains at the regular state. Satisfied in other words.
To solve with subtraction... If a number is subtracted from both of the sides of the inequallity the the point of the inequallity stays unchanged. (equality symbol) to be more specific.