Question 653199
Supplmentary angels sum to 180
Let one angle be ginen by X. You are told the other angle is {{{X-76}}}
The sum of those two is 180
{{{180 = X + (X-76)}}}
{{{180 =  2x - 76}}}
{{{180+76 = 2X}}}
{{{256 = 2X}}}
{{{128 = X}}}
The second angle is {{{128-76 = 52}}}