Question

To long dijawab ya...
Plsss

Answer 1

3x + 20 = 5x - 10

2x = 30

x = 15

180 = (3x + 20) + (6y + 25)

180 = 65 + (6y + 25)

115 = 6y + 25

y = 15

E = 6y + 25

E = 90 + 25

E = 115° (bertolak belakang dengan 6y + 25)