Answer:
[tex]x = 18[/tex]
Step-by-step explanation:
Vertically Opposite Angles are equal..
so,
[tex]x + 54 = 4x \\ 54 = 4x - x \\ 54 = 3x \\ \frac{54}{3} = \frac{3x}{3} \\ 18 = x[/tex]
[tex]x + 54 \: and \: 4x \: are \: opposite \: so \\ x + 54 = 4x \\ x \: terms \: togather \\ 4x - x = 54 \\ 3x = 54 \\ x = \frac{54}{3} \\x = 18 \\ thank \: you[/tex]
