You can put this solution on YOUR website!
"Two angles are supplementary" means that two angles, say 'x' and 'y', add up to 180 degrees. So
. Basically, these two angles form a straight line.
In addition, since "one angle measures 45° less than twice the measure of its supplement", we know that
. Once you have the second equation, plug it into the first to get
. I'll let you solve for 'x'. Once you have a solution for 'x', plug it into
to find the solution for 'y'.