This year, I set a goal to improve on my algebra. I believe that I have achieved this goal very well. Some of the many things I’ve learnt are to solve an equation with more than one unknown value. e.g. 3D + 2d = 32kg –>you turn one of the unknown into the same number. 4D + 3d = 44kg which means that it’s 9D + 6d = 96kg __________________________________-8D – 6d = -88kg —> you subtract the equations from each other, turning the second one into negatives. ___________________________________1D = 8kg. You now focus on the second sum which is 4D + 3d = 44kg. You solve it by : (4×8) + 3d = 44kg =32 + 3d = 44kg. You then subtract the two given values like a normal algebraic equation: 32 + 3d = 44kg 3d =44 – 32 3d = 12 —> because you want to find out what 1d is, you divide the 12 by three. That gives you 4. Your two formulas for the sum are: 1D = 8kg 1d = 4kg Another thing I learnt was to find the number of degrees in each angle of a polygon. The formula to that is: (n-2) x 180 —> ‘n’ being the number of sides in the polygon. _______n I found this very interesting because finding the angle to more complex polygons like octagons and heptagons. Because of these shapes finding the exact number of degrees in the shape is a lot more complicated than the simpler shapes.