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# Year 8 Algebra Recap

## 1 files28/05/2016

(a) Revision of simplifying algebraic expressions (multiplying, dividing, adding, expanding single brackets).

(b) Revision of solving simple equations, e.g. (x2 - 7)/2 = 9 and 1 - 3x = 2x - 7# Changing the Subject - Subject Appears Once Only

## 8 files12/10/2021

(a) Change the subject of any formula where the new subject appears only once. Includes roots, squares, brackets, where x appears within a negative term and/or in the denominator.

(b) Be able to cross multiply.

(c) Determine a value when the formula and values of all other variables are given.# KS3/GCSE 2D Shapes

## 1 files08/10/2019

Properties of 2D shapes.

# GCSE Interior & Exterior Angles

## 4 files24/12/2018

Interior and exterior angles of polygons, including tessellation problems.