Question

pliz complete it
answer = x-y =18 , x+y = 180, where x and y ate are the measures of the two angles in degrees x=99 , y= 81

Answer 1

$x - y = 18 \: \: (eq.1) \\ x + y = 180 \: (eq.2) \\ \\ by \: adding \: both \: the \: equation \\ we \: get \\ 2x = 198 \\ x = 198 \div 2 \\ x = 99 \\ putting \: the \: value \: of \: x \: in \: eq.1 \\ 99 - y = 18 \\ - y = 18 - 99 \\ - y = - 81$

$y = 81$

$answer$

Answer 2

hope its helpful..........