Question

HelloCan you help me with this equation ? -7 - (-3)=?

Answer 1

You have to calculate a subtraction between two negative numbers:

`-7-(-3)`

Note that there are two minus signs after another in the expression. This situation is called a "double negative" and when it happens, the minus signs cancel each other and become positive:

`(-)(-)=(+)`

You can write the expression as:

`\begin{gathered} -7-(-3) \\ -7+3 \end{gathered}`

Now you can solve the calculation

`-7+3=-4`