tolong dijawab yaa, pake caranya

bod = doc + cob
90 ˚ = (x+4) + (3x+6)
90˚ = 4x +10˚ →pindah ruas
4x = 90 ˚ - 10 ˚
4x = 80 ˚
x = 80/4
x= 20 ˚

coe = doc + eod
coe = (x+4) + (2x +8)
coe = (20+4) + (2.20 +8)
coe = 24˚ + 40+8
coe = 72 ˚