Please Hurry) What is the length of side AC of the triangle? □ units.

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
[tex]\boxed{\mathrm{AC = 25 \:\: units ~}}[/tex]
[tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]
As we can see in the given figure, Angles A and B are equal. therefore their opposite sides will be equal to one another, that is ~
now, let's plug the values of AB and BC in terms of x and equate them to find the value of x ~
now , let's find the measure of side AC ~
that is ~