Calculate X in Trapezoid: Given Height 5 and Base 7

Question

Calculate X according to the data in the diagram:

00:00 Find X

00:03 We will use the formula for calculating trapezoid area

00:07 ((sum of bases) times height) divided by 2

00:18 We'll substitute appropriate values according to the given data and solve for X

00:31 Isolate X

01:04 And this is the solution to the problem

$6$