beginning Solution1 vertically opposite angles are equal 2x5

beginning

Solution

1)

vertically opposite angles are equal

2x+51 =5x -3

=>5x-2x=51+3

=>3x =54

=>x=54_/3

=>x=18

left angle = (2*18 +51)^o,right angle =(5*18 -3)^o

left angle = (36 +51)^o,right angle =(90 -3)^o

left angle = 87^o,right angle =87^o

angles are 87^o,87^o

------------------------------------------------------------------