Since all three sides have the ( symbol it means that all the angles in the triangle are the same. In a triangle with all the angles congruent the side lengths are also congruent.
As such you can make an equation where one side length equals the other.
10x+3=3x+24
10x-3x=24-3
7x=21
x=3
then just substitute 3 for x
3(3)+24=KL
9+24=KL
33=KL
Also it took me forever to understand this concept, trust me it can easily get confusing. I hope this helps!
All three angles are marked in a way to indicate that they are equal. That means the side opposite them are also equal to another side of the same triangle.
Difference between 60 and 45 is 15 so $15 in 10 cent would be 150 so 150 miles . Answer: you would need to drive more than 150 miles for plan b to save money:)