The question is attached in the picture below. Pls help ASAP

[tex]\huge\text{Hey there!}[/tex]
[tex]\huge\textbf{Your temporary equation: }[/tex]
[tex]\mathsf{5x + x = \ ?}[/tex]
[tex]\huge\textbf{We know: }[/tex]
[tex]\large\textbf{That ONE angle equals 90}^\circ\large\textbf{ and the whole entire angle is}\\\large\textbf{360}^\circ.[/tex]
[tex]\huge\textbf{Knowing that much information, we can}\\\\\huge\textbf{make the equation much easier to solve.}\\\\\\\huge\textbf{We will simplify the angle sides and it}\\\\\huge\textbf{should give you the answer behind the}\\\\\huge\textbf{the equal sign.}[/tex]
[tex]\mathbf{360^\circ - 90^\circ = \boxed{\mathbf{the\ mystery\ number\ behind\ the\ equal\ sign}}}[/tex]
[tex]\huge\textbf{Simplify it!}[/tex]
[tex]\mathbf{the\ mystery\ number\ behind\ the\ equal\ sign = \boxed{\bf 270}}}}[/tex]
[tex]\huge\textbf{New equation:}[/tex]
[tex]\mathbf{5x + x = 270^\circ}[/tex]
[tex]\huge\textbf{COMBINE the LIKE TERMS:}[/tex]
[tex]\mathbf{(5x + x) = 270^\circ}[/tex]
[tex]\mathbf{5x + x = 270^\circ}[/tex]
[tex]\huge\textbf{Remember a variable by itself is}\\\\\huge\textbf{understood as an invisible 1.}[/tex]
[tex]\huge\textbf{Anyway, back to answering the equation}[/tex]
[tex]\mathbf{5x + x}[/tex]
[tex]\mathbf{= 5x + 1x}[/tex]
[tex]\mathbf{= 6x}[/tex]
[tex]\huge\textbf{New equation:}[/tex]
[tex]\mathbf{6x = 270^\circ}[/tex]
[tex]\huge\textbf{DIVIDE 6 to BOTH SIDES:}[/tex]
[tex]\mathbf{\dfrac{6x}{6}=\dfrac{270}{6}}[/tex]
[tex]\huge\textbf{SIMPLIFY IT!}[/tex]
[tex]\mathbf{x = \dfrac{270}{6}}[/tex]
[tex]\mathbf{x = 45}[/tex]
[tex]\huge\textbf{Answer:}[/tex]
[tex]\huge\boxed{\mathsf{x = 45}}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]