Question

the angles are adjacent and form an angle of 140 degree. the smaller is 28° less than larger

Answer 1

required angle=140-28
                       =112

Answer 2

$x + x - 28 = 140 \\ 2x - 28 = 140 \\ 2x = 140 + 28 \\ 2x = 168 \\ \\ x = 168 \div 2 = 84 \\ hence \: larger \: angle = 84 \\ small \: anle = 84 - 28 = 56$