What does “converse of the alternate interior angles theorem” mean?

If alternate interior angles formed by two lines with an intersecting traversal are congruent , then these two lines are parallel.

Step-by-step explanation:

Hope this helps :)- Mark Brainiest Please! Thanks!

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: