Tolong jawab soal no 4 dan 5 Pake cara ya! Thanks

No.4
180` = 5x + 20` + 3x
180` = 8x + 20`
   8x = 160`
     x = 20`
jadi, sudut ABD = 5x + 20` = 5(20) + 20
                                           = 120`
No 5
180 = 2x + 3x + 85
180 = 5x + 85
  5x = 95
    x = 19
jadi, panjang sudut NOM = 3(19) = 57`
Done 🙂