Answer:
[tex]x = 13[/tex]
[tex]m<Q = 114°[/tex]
[tex]m<D = 66°[/tex]
Step-by-step explanation:
First option :
[tex](5x+1)=(6x−12)[/tex]
[tex]5x+1−6x=−12[/tex]
[tex]−x+1=−12[/tex]
[tex]−x=−12−1[/tex]
[tex]−x=−13[/tex]
[tex]x=(−13) \times (−1)[/tex]
[tex]x = 13[/tex]
Second option :
<D = 6(13) - 12
= 78 - 12
= 66°
Third option :
<A + <D = 180°
<D = 180 - 66
= 114°
Hope it is helpful...
