Simultaneous equations like 𝒚 = 2𝒙 - 1 and 𝒚 = 𝒙 + 1 can be represented graphically. To solve the equations graphically, the two lines 𝒚 = 𝒙 + 1 and 𝒚 = 2𝒙 - 1 are drawn on the same diagram.

Equations that have more than one unknown can have an infinite number of solutions. For example, \(2x + y = 10\) could be solved by: \(x = 1\) and \(y = 8\) \(x = 2\) and \(y = 6\) \(x = 3\) and \(y = ...

The Canadian Journal of Economics / Revue canadienne d'Economique, Vol. 18, No. 1, Econometrics Special (Feb., 1985), pp. 28-37 (10 pages) A computationally tractable, easily interpretable linear ...

A MECHANICAL calculating machine for solving simultaneous linear equations up to ten in number under construction at the Massachusetts Institute of Technology by Drs. V. Bush and J. B. Wilbur was ...

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During lockdowns, I researched viral internet maths sensations. Several of them are what a teenager might recognise as simultaneous equations. In the emoji example above, smiley faces = 4 and blown ...