The points (a, b) and (c, d) form a segment, and the points (d, e) and (d, f) form a segment. Create an equation assuming the segments are congruent

What is the value of x in the diagram below?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?