Question 1150977

that is right

confirmation:

 let angle be {{{x}}}, the supplement would be {{{(180-x) }}}

given: The supplement of an angle is {{{30}}} degrees less than twice the measure of the angle itself.

so, 
{{{(180-x) =2x-30}}}

{{{180+30 =2x+x}}}

{{{210 =3x}}}

{{{x=70}}}

and the supplement would be {{{180-70=110 }}}