Year 8 Mathematics Algebra 1 Substitute into Simple Formulae by Ms Lilburne • February 15, 2018 https://flipvideos.girton.vic.edu.au/images/sites/5/2018/02/1.-Algebra-substitute-into-simple-formulae.mp4Podcast: Play in new window | Download (Duration: 7:03 — 8.4MB) Related