[tex]\longrightarrow{\green{6}}[/tex]
[tex]\sf \bf {\boxed {\mathbb {Step-by-step\:explanation:}}}[/tex]
[tex] \: - ( - 6)[/tex]
Removing parentheses. we have
➼ [tex] \: 6[/tex]
[tex]\sf\red{PEMDAS\: rule.}[/tex]
P = Parentheses
E = Exponents
M = Multiplication
D = Division
A = Addition
S = Subtraction
And,
[tex]\sf\purple{(-)\:x\:(-)\:=\:+}[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}[/tex]