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what happened when you had a positive minus a negative, a-(-b)?what happened when you had a negative minus a negative (-a)-(-b)?

User JuSchz
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1 Answer

3 votes

Your First question says what happens when you have a positive value minus a negative value.

Let the positive value be a and the negative value be - b

a - (- b) = a + b

Note


-\text{ }*\text{ - = +}

The second question says what happens when we have a negative value minus a negative value.

-a - (-b) = -a + b

Note


\begin{gathered} -\text{ }*\text{ + = - } \\ +\text{ }*\text{ + = +} \\ -\text{ }*\text{ - = +} \end{gathered}

User Mathyn
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