If
abf(x)dx=86f(x)dx+611f(x)dx82f(x)dx\displaystyle {\int_{{a}}^{{b}}}{f{{\left({x}\right)}}}{\left.{d}{x}\right.}={\int_{{-{{8}}}}^{{6}}}{f{{\left({x}\right)}}}{\left.{d}{x}\right.}+{\int_{{6}}^{{11}}}{f{{\left({x}\right)}}}{\left.{d}{x}\right.}-{\int_{{-{{8}}}}^{{-{{2}}}}}{f{{\left({x}\right)}}}{\left.{d}{x}\right.},
what are the bounds of integration for the first integral?

a =
and
b =