Algebra and area : expressions for area in terms of x

How to find an expression for the area of an L shape in terms of x and then solve the resultant equation to find the unknown value of x. This video shows how to find the area of composite shapes by splitting up into two simple rectangles.
Exam solutions: June 2012 AQA GCSE Maths Higher Linear Non-Calculator Paper 1 question 10

[GigaShiv]

My guy might have just solved my problem in like a min, respect and you've earned a subscriber

[trevorbrendan-simon]

You wouldnt mind doing a video on how to write an expression in terms of x of the number of sides in a shape, would you not?

[vincentxie]

I kinda don't get the point of what he said on the video

[ARWAH]

this is ebtter than the ladder theorum or wtv

[SlaveOfTheCreator]

I'm pretty sure for area you have to times the sides not add...

[chilledwhitevibes]

last time I checked 4+ 6 definitely comes to 10? :S

[rhodaapronal]

Why it assumed to be a unit measure for solving the joined rectangle?