This is a whole lesson on Simultaneous Equations by Substitution that is KS3, GCSE and IGCSE ready. This is the second lesson looking at the concept of simultaneous equations and teaching how to solve ...

A PowerPoint that can be used with a class, A scaffolded student version of the PowerPoint with gaps for the students to fill in, A differentiated worksheet with answers included. This resource is ...

👉Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of the variables that makes the each of the equation in the system true. To ...

Learn how to solve systems of equations in Algebra 1 using the substitution method! Lizzie guides you step-by-step through isolating variables, working with coefficients of 1 and -1, and applying the ...