Fran solved the equation 42 = x + 23. although her final answer was correct, she could have found it in a simpler way. which sentence best explains why?

She could have just done 42-23 = x and solved the equation in one step because if 23 and x add up to 42, then subtracting one from 42 will result in the other. This means both equations are equivalent, but 42-23 is faster and simpler.

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

step-by-step explanation: