[tex]\huge\text{Hey there!}[/tex]
[tex]\mathsf{(x + 7^2) = 169}[/tex]
[tex]\mathsf{x + 7^2 = 169}[/tex]
[tex]\mathsf{x + 7\times 7 = 169}[/tex]
[tex]\mathsf{x + 49 = 169}[/tex]
[tex]\text{Subtract 49 to both sides}\downarrow[/tex]
[tex]\mathsf{x + 49 - 49 = 169 - 49}[/tex]
[tex]\text{Simplify it}\downarrow[/tex]
[tex]\mathsf{x = 169 - 49}[/tex]
[tex]\mathsf{x = 120}[/tex]
[tex]\large\text{Therefore, your answer should be:}[/tex]
[tex]\huge\boxed{\mathsf x = \frak{120}}\huge\checkmark[/tex]
[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
