Question

the larger of 2 supplement angle exceeds the smaller by 18 degrees. find the angles x+y = 180 and x-y = 80​

Answer 1

let X and y be two angles.

according to question,

X+y=180

x-y=18,

by elimination method,

add both equation

X+y=180

+ x-y=18

2X=198

X=99.

y=81.

two angles are 99and81.