Answer:
∠ 1 = 160°, ∠ 2 = 20°
Step-by-step explanation:
The 2 angles are adjacent and supplementary, thus
∠ 1 + ∠ 2 = 180°, substitute values
5x + x - 12 = 180, that is
6x - 12 = 180 ( add 12 to both sides )
6x = 192 ( divide both sides by 6 )
x = 32
Thus
∠ 1 = 5x = 5(32) = 160°
∠ 2 = x - 12 = 32 - 12 = 20°
