Tolong bantu kk Makasih.. ​

6x – 40 = 4x

x = 20

4x = 4(20) = 80

180 – 80 = 100

y + 100 + 55 = 180

y = 25°

Jawaban:

4x = 6x – 40°

4x-6x=-40°

-2x=-40°

x= -40°/-2

= 20°

4x = 4x 20°= 80°

pelurusnya = 180°-80°=100°

y= 180°-(100°+55°)

= 180°-155°=25° (C)