Explanation
Given the expression
[tex]c-6b[/tex]
Since b =-3 and c=-2, therefore, we can evaluate the expression by substituting the value of c and b into the expression
[tex]\begin{gathered} 2-6(-3) \\ =2-(6\times(-3)) \\ =2-(-18) \\ =2+18 \\ =20 \end{gathered}[/tex]
