Reflection for Maths...

Ok... Let's see... One thing I want to improve is to concentrate on my studies and improve it and improve my Chinese. Real bad at it. Yeah.

Chapter 4: Algebra Puzzle

Let drum = a, car = b, cog = c

            3a = 6

            a = 6 ÷ 3 = 2

Therefore one drum = 2

            2a + b = 20

            2a = 2 x 2 = 4

            20 - 4 = 16

Therefore one car = 16

            2b + c = 36

            2b = 2 x 16 = 32

            36 - 32 = 4

Therefore one cog = 4

Ans: Drum = 2, Car = 16, Cog = 4