Question

Find$(-15)-(-18)$

Answer 1

Evaluate the given expression:

Given,$(-15)-(-18)$

$$\begin{gathered} =\left(-15\right)-\left(-18\right) \\ =\left(-15\right)+\left(18\right) \\ =3 \end{gathered}$$ [$\mathbf{\because }\mathbf{}\mathbf{-}\left(-1\right)\mathbf{}\mathbf{=}\mathbf{}\mathbf{+}\mathbf{1}$ ]

Hence, the value of $\mathbf{}\mathbf{(}\mathbf{-}\mathbf{15}\mathbf{)}\mathbf{}\mathbf{-}\mathbf{}\mathbf{(}\mathbf{-}\mathbf{18}\mathbf{)}$ is $\mathbf{3}$.