Penjelasan dengan langkah-langkah:
3x + 31 + 4x - 5 = 180°
180 - 31 + 5 = 3x + 4x
154 = 7x
x = 154/7
x = 22°ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ
< QOR
= 4x - 5
= 4.22 - 5
= 88 - 5
= 83° ( Opsi c. )
_____
Green
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Penjelasan dengan langkah-langkah:
3x + 31 + 4x - 5 = 180°
180 - 31 + 5 = 3x + 4x
154 = 7x
x = 154/7
x = 22°ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ ᅠᅠᅠ
< QOR
= 4x - 5
= 4.22 - 5
= 88 - 5
= 83° ( Opsi c. )
_____
Green