Answer
$\color{blue}{\dfrac{26}{5} \text{ or } 5.2}$
Work Step by Step
Substitute the given values of the variables to obtain:
$=(-1-2) \div 5\cdot(-2)+4$
Simplify within the parentheses to obtain:
$=(-3) \div 5 \cdot (-2) + 4$
Perform the division:
$=-\dfrac{3}{5} \cdot (-2) + 4$
Multiply:
$=\dfrac{6}{5} + 4
\\=\dfrac{6}{5} + \dfrac{20}{5}$
Add:
$\\=\dfrac{6+20}{5}
\\=\color{blue}{\dfrac{26}{5} \text{ or } 5.2}$
