Learn about and revise formulae and how to apply skills in substituting, creating and rearranging formulae with GCSE Bitesize AQA Maths.

Here's the algebra which should confirm our observations. The method is substitution.

Bingsheng He, Min Tao, Xiaoming Yuan, Convergence Rate Analysis for the Alternating Direction Method of Multipliers with a Substitution Procedure for Separable Convex Programming, Mathematics of ...