Equations such as 3𝑥 + 8 = 15 need two steps. Make sure you are confident in calculating with negative numbers, which is a skill often needed to solve equations.

Learn how to form, solve, and rearrange equations using the tools and conventions of algebra with BBC Bitesize GCSE Maths.

Quantum information researchers have tried to use linear equations as a key to unlock nonlinear differential ones for over a decade. One breakthrough came in 2010, when Dominic Berry, now at Macquarie ...