Learn how to use inverse operations to find the value of an unknown variable in an equation, so that the value is true.

Learn how to solve equations with brackets, 𝑥 terms on both sides, and fractions using inverse operations in this GCSE maths study guide.

That is the idea behind PhotoMath. PhotoMath is a free mobile app that can read and solve mathematical expressions using your smartphone camera in real time.

GREGORY N. FIORE, AN APPLICATION OF LINEAR EQUATIONS TO THE VCR, The Mathematics Teacher, Vol. 81, No. 7 (OCTOBER 1988), pp. 570-572 ...

The Balance Model: Hindrance or Support for the Solving of Linear Equations with One Unknown, Educational Studies in Mathematics, Vol. 49, No. 3 (2002), pp. 341-359 ...

Two new approaches allow deep neural networks to solve entire families of partial differential equations, making it easier to model complicated systems and to do so orders of magnitude faster.